#include <bits/stdc++.h>
using namespace std;
#ifndef ONLINE_JUDGE
	#include <boost/multiprecision/cpp_int.hpp>
	#include <boost/multiprecision/cpp_dec_float.hpp>
	using bll = boost::multiprecision::cpp_int;
	using bdouble = boost::multiprecision::cpp_dec_float_100;
	using namespace boost::multiprecision;
#endif
#ifdef LOCAL_DEV
	void debug_impl() { std::cerr << '\n'; }
	template<typename Head, typename... Tail> void debug_impl(Head head, Tail... tail) { std::cerr << " " << head << (sizeof...(tail) ? "," : ""); debug_impl(tail...); }
	#define debug(...) do { std::cerr << "(" << #__VA_ARGS__ << ") ="; debug_impl(__VA_ARGS__); } while (false)
#else
	#define debug(...) do {} while (false)
#endif
#ifdef LOCAL_TEST
	#define BOOST_STACKTRACE_USE_ADDR2LINE
	#define BOOST_STACKTRACE_ADDR2LINE_LOCATION /usr/local/opt/binutils/bin/addr2line
	#define _GNU_SOURCE
	#include <boost/stacktrace.hpp>
	namespace std {
		template<typename T> class dvector : public std::vector<T> {
		public:
			dvector() : std::vector<T>() {}
			explicit dvector(size_t n, const T& value = T()) : std::vector<T>(n, value) {}
			dvector(const std::vector<T>& v) : std::vector<T>(v) {}
			dvector(const std::initializer_list<T> il) : std::vector<T>(il) {}
			dvector(const std::string::iterator first, const std::string::iterator last) : std::vector<T>(first, last) {}
			dvector(const typename std::vector<T>::iterator first, const typename std::vector<T>::iterator last) : std::vector<T>(first, last) {}
			dvector(const typename std::vector<T>::reverse_iterator first, const typename std::vector<T>::reverse_iterator last) : std::vector<T>(first, last) {}
			dvector(const typename std::vector<T>::const_iterator first, const typename std::vector<T>::const_iterator last) : std::vector<T>(first, last) {}
			dvector(const typename std::vector<T>::const_reverse_iterator first, const typename std::vector<T>::const_reverse_iterator last) : std::vector<T>(first, last) {}
			T& operator[](size_t n) {
				try { return this->at(n); } catch (const std::exception& e) {
					std::cerr << boost::stacktrace::stacktrace() << '\n'; return this->at(n);
				}
			}
			const T& operator[](size_t n) const {
				try { return this->at(n); } catch (const std::exception& e) {
					std::cerr << boost::stacktrace::stacktrace() << '\n'; return this->at(n);
				}
			}
		};
	}
	class dbool {
	private:
		bool boolvalue;
	public:
		dbool() : boolvalue(false) {}
		dbool(bool b) : boolvalue(b) {}
		dbool(const dbool& b) : boolvalue(b.boolvalue) {}
		operator bool&() { return boolvalue; }
		operator const bool&() const { return boolvalue; }
	};
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::dvector<T>& v) {
		for (size_t i = 0; i < v.size(); ++i){ s << v[i]; if (i < v.size() - 1) s << "\t"; } return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::dvector<std::dvector<T>>& vv) {
		s << "\\\n"; for (size_t i = 0; i < vv.size(); ++i){ s << vv[i] << "\n"; } return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::deque<T>& v) {
		for (size_t i = 0; i < v.size(); ++i){ s << v[i]; if (i < v.size() - 1) s << "\t"; } return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::set<T>& se) {
		s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; }
	template<typename T> std::ostream& operator<<(std::ostream& s, const std::multiset<T>& se) {
		s << "{ "; for (auto itr = se.begin(); itr != se.end(); ++itr){ s << (*itr) << "\t"; } s << "}"; return s; }
	template <typename T, size_t N> std::ostream& operator<<(std::ostream& s, const std::array<T, N>& a) {
		s << "{ "; for (size_t i = 0; i < N; ++i){ s << a[i] << "\t"; } s << "}"; return s; }
	template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::map<T1, T2>& m) {
		s << "{\n"; for (auto itr = m.begin(); itr != m.end(); ++itr){ s << "\t" << (*itr).first << " : " << (*itr).second << "\n"; } s << "}"; return s; }
	template<typename T1, typename T2> std::ostream& operator<<(std::ostream& s, const std::pair<T1, T2>& p) {
		return s << "(" << p.first << ", " << p.second << ")"; }
	#define vector dvector
	#define bool dbool
	class SIGFPE_exception : std::exception {};
	class SIGSEGV_exception : std::exception {};
	void catch_SIGFPE(int e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; throw SIGFPE_exception(); }
	void catch_SIGSEGV(int e) { std::cerr << boost::stacktrace::stacktrace() << '\n'; throw SIGSEGV_exception(); }
	signed convertedmain();
	signed main() { signal(SIGFPE, catch_SIGFPE); signal(SIGSEGV, catch_SIGSEGV); return convertedmain(); }
	#define main() convertedmain()
#endif
//#define int long long
using ll = long long;
//constexpr int INF = 1e9;//INT_MAX=(1<<31)-1=2147483647
constexpr ll INF = (ll)1e18;//(1LL<<63)-1=9223372036854775807
constexpr ll MOD = (ll)1e9 + 7;
constexpr double EPS = 1e-9;
constexpr ll dx[4] = {1LL, 0LL, -1LL, 0LL};
constexpr ll dy[4] = {0LL, 1LL, 0LL, -1LL};
constexpr ll dx8[8] = {1LL, 0LL, -1LL, 0LL, 1LL, 1LL, -1LL, -1LL};
constexpr ll dy8[8] = {0LL, 1LL, 0LL, -1LL, 1LL, -1LL, 1LL, -1LL};
#define rep(i, n)   for(ll i=0, i##_length=(n); i< i##_length; ++i)
#define repeq(i, n) for(ll i=1, i##_length=(n); i<=i##_length; ++i)
#define rrep(i, n)   for(ll i=(n)-1; i>=0; --i)
#define rrepeq(i, n) for(ll i=(n)  ; i>=1; --i)
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
void p() { std::cout << '\n'; }
template<typename Head, typename... Tail> void p(Head head, Tail... tail) { std::cout << head << (sizeof...(tail) ? " " : ""); p(tail...); }
template<typename T> inline void pv(std::vector<T>& v) { for(ll i=0, N=v.size(); i<N; i++) std::cout << v[i] << " \n"[i==N-1]; }
template<typename T> inline T gcd(T a, T b) { return b ? gcd(b,a%b) : a; }
template<typename T> inline T lcm(T a, T b) { return a / gcd(a,  b) * b; }
template<typename T> inline bool chmax(T& a, T b) { return a < b && (a = b, true); }
template<typename T> inline bool chmin(T& a, T b) { return a > b && (a = b, true); }
template<typename T> inline void uniq(std::vector<T>& v) { v.erase(std::unique(v.begin(), v.end()), v.end()); }

/*-----8<-----template-----8<-----*/

inline constexpr ll extgcd(ll a, ll b, ll &x, ll &y){ ll g = a; x = 1; y = 0; if(b){ g = extgcd(b, a % b, y, x); y -= a / b * x; } return g; }
inline constexpr ll invmod(ll a, ll m = MOD){ ll x = 0, y = 0; extgcd(a, m, x, y); return (x + m) % m; }
class Modint{
public:
	ll _num;
	constexpr Modint() : _num() { _num = 0; }
	constexpr Modint(ll x) : _num() { _num = x % MOD; if(_num < 0) _num += MOD; }
	inline constexpr Modint operator= (int x){ _num = x % MOD; if(_num<0) _num += MOD; return *this; }
	inline constexpr Modint operator= (ll x){ _num = x % MOD; if(_num<0) _num += MOD; return *this; }
	inline constexpr Modint operator= (Modint x){ _num = x._num; return *this; }
	inline constexpr Modint operator+ (int x){ return Modint(_num + x); }
	inline constexpr Modint operator+ (ll x){ return Modint(_num + x); }
	inline constexpr Modint operator+ (Modint x){ ll a = _num + x._num; if(a >= MOD) a -= MOD; return Modint{a}; }
	inline constexpr Modint operator+=(int x){ _num += x; _num %= MOD; if(_num < 0) _num += MOD; return *this; }
	inline constexpr Modint operator+=(ll x){ _num += x; _num %= MOD; if(_num < 0) _num += MOD; return *this; }
	inline constexpr Modint operator+=(Modint x){ _num += x._num; if(_num >= MOD) _num -= MOD; return *this; }
	inline constexpr Modint operator++(){ _num++; if(_num == MOD) _num = 0; return *this; }
	inline constexpr Modint operator- (int x){ return Modint(_num - x); }
	inline constexpr Modint operator- (ll x){ return Modint(_num - x); }
	inline constexpr Modint operator- (Modint x){ ll a = _num - x._num; if(a < 0) a += MOD; return Modint{a}; }
	inline constexpr Modint operator-=(int x){ _num -= x; _num %= MOD; if(_num < 0) _num += MOD; return *this; }
	inline constexpr Modint operator-=(ll x){ _num -= x; _num %= MOD; if(_num < 0) _num += MOD; return *this; }
	inline constexpr Modint operator-=(Modint x){ _num -= x._num; if(_num < 0) _num += MOD; return *this; }
	inline constexpr Modint operator--(){ _num--; if(_num == -1) _num = MOD - 1; return *this; }
	inline constexpr Modint operator* (int x){ return Modint(_num * (x % MOD)); }
	inline constexpr Modint operator* (ll x){ return Modint(_num * (x % MOD)); }
	inline constexpr Modint operator* (Modint x){ return Modint{_num * x._num % MOD}; }
	inline constexpr Modint operator*=(int x){ _num *= Modint(x); _num %= MOD; return *this; }
	inline constexpr Modint operator*=(ll x){ _num *= Modint(x); _num %= MOD; return *this; }
	inline constexpr Modint operator*=(Modint x){ _num *= x._num; _num %= MOD; return *this; }
	inline constexpr Modint operator/ (int x){ return Modint(_num * invmod(Modint(x), MOD)); }
	inline constexpr Modint operator/ (ll x){ return Modint(_num * invmod(Modint(x), MOD)); }
	inline constexpr Modint operator/ (Modint x){ return Modint{_num * invmod(x._num, MOD) % MOD}; }
	inline constexpr Modint operator/=(int x){ _num *= invmod(Modint(x), MOD); _num %= MOD; return *this; }
	inline constexpr Modint operator/=(ll x){ _num *= invmod(Modint(x), MOD); _num %= MOD; return *this; }
	inline constexpr Modint operator/=(Modint x){ _num *= invmod(x._num, MOD); _num %= MOD; return *this; }
	inline constexpr Modint pow(ll n){ ll i = 1, x = n>=0 ? n : -n; Modint ans = 1, cnt = n>=0 ? *this : Modint(1) / *this; while(i <= x){ if(x & i){ ans *= cnt; x ^= i; } cnt *= cnt; i *= 2; } return ans; }
	inline constexpr operator ll() const { return _num; }
};
inline std::istream& operator>>(std::istream &s, Modint &x){ ll t; s>>t; x=t; return s; }
vector<Modint> fac(1, 1), inv(1, 1);
inline void reserve(size_t a){
	if(fac.size() >= a) return;
	if(a < fac.size() * 2) a = fac.size() * 2;
	if(a >= MOD) a = MOD;
	while(fac.size() < a) fac.push_back(fac.back() * ll(fac.size()));
	inv.resize(fac.size());
	inv.back() = Modint(1) / fac.back();
	for(ll i = inv.size() - 1; !inv[i - 1]; i--) inv[i - 1] = inv[i] * i;
}
inline Modint factorial(ll n){ if(n < 0) return 0; reserve(n + 1); return fac[n]; }
inline Modint nPk_loop(ll n, ll k){ if(n<k) return 0; Modint val(1); for(ll i=n;i>(n-k);i--)val*=i; return val; }
inline Modint nCk_loop(ll n, ll k){ if(n<k) return 0; Modint val(1); k=min(k,n-k); for(ll i=n;i>(n-k);i--)val*=i; for(ll i=k;i>1;i--)val/=i; return val; };
inline Modint nPk(ll n, ll k){ if(k < 0 || n < k) return 0; if(n>=(ll)1e7) return nPk_loop(n, k); reserve(n + 1); return fac[n] * inv[n - k]; }
inline Modint nCk(ll n, ll k){ if(k < 0 || n < k) return 0; if(n>=(ll)1e7) return nCk_loop(n, k); reserve(n + 1); return fac[n] * inv[k] * inv[n - k]; }
inline Modint nHk(ll n, ll k){ return nCk(n + k - 1, k); } //n種類のものから重複を許してk個選ぶ=玉k個と仕切りn-1個

/*
nCk：n!が間に合わないくらい巨大でkが小さいとき、素直に計算すると間に合う のは1e7以上に組み込んであります
	auto f = [](ll n, ll k){
		if(n<k)return Modint(0);
		Modint val(1);
		k=min(k,n-k);
		for(ll i=n;i>(n-k);i--)val*=i;
		for(ll i=k;i>1;i--)val/=i;
		return val;
	};
*/


////


//MAXVAL以下の素数を求める + MAXVAL以下の整数を素因数分解
//[1-1e7]くらいの範囲で素因数分解をまとめて行いたい場合にお得
class Eratosthenes {
public:
	//primes[i] : i番目の素数
	vector<ll> primes;
	//isprime[i] = true:素数, false:合成数
	vector<bool> isprime;
	//min_factor[i] : iに含まれる最小の素因数
	vector<ll> min_factor;
private:
	inline void upflag(int *flags, int BITS, int i) {
		flags[i / BITS] |= 1 << (i % BITS);
	}
	inline int getflag(int *flags, int BITS, int i) {
		return (flags[i / BITS] >> (i % BITS)) & 1;
	}
	inline void setprime(int x) {
		primes.push_back(x);
		isprime[x] = true;
		min_factor[x] = x;
	}
	inline void setcomposite(int x, int factorval) {
		if(min_factor[x] == -1) min_factor[x] = factorval;
	}
	template<typename T1, typename T2> inline T1 power(T1 x, T2 n) {
		return n ? power(x*x,n/2)*(n%2?x:1) : 1;
	}
public:
	Eratosthenes(ll MAXVAL) : primes(), isprime(MAXVAL+1, false), min_factor(MAXVAL+1, -1) {
		int BITS = (sizeof(int) * 8);
		int FLAGS_NUM = (MAXVAL / BITS + 1);
		int flags[FLAGS_NUM] = {};
		int i, j, f, s;
		int max = (int)sqrt(MAXVAL) + 1;
		setcomposite(0,0);if(MAXVAL<=0)return;
		setcomposite(1,1);if(MAXVAL<=1)return;
		setprime(2);if(MAXVAL<=2)return;
		setprime(3);if(MAXVAL<=3)return;
		for (i = 4; i<=MAXVAL; i+=2) setcomposite(i,2);
		for (i = 9; i<=MAXVAL; i+=6) setcomposite(i,3);
		for (i = 5, f = 4; i <= max; i += (f = 6 - f)) {
			if (!getflag(flags,BITS,i)) {
				setprime(i);
				s = MAXVAL / i;
				for (j = s - !(s & 1); j >= i; j -= 2) {
					if (!getflag(flags,BITS,i)){
						upflag(flags,BITS,i*j);
						setcomposite(i*j,i);
					}
				}
			}
		}
		for (; i <= MAXVAL; i += (f = 6 - f)){
			if (!getflag(flags,BITS,i)){
				setprime(i);
			}
		}
	}

	// n を素因数分解する
	map<ll,ll> prime_factorize(ll n) {
		map<ll,ll> res;
		while (n != 1) {
			ll prime = min_factor[n];
			ll exp = 0;
			while (min_factor[n] == prime) {
				++exp;
				n /= prime;
			}
			res[prime]=exp;
		}
		return res;
	}

	//nの約数を返す　ソートされていないので必要に応じてsort(all(div));してください
	//[1,1e6]ループまでは耐えれるけど、約数の個数だけが知りたい場合は素因数分解の結果から計算してください
	vector<ll> divisor(ll n){
		vector<ll> res;
		map<ll,ll> m=prime_factorize(n);
		ll N=m.size();
		vector<ll> bitlen(N+1);
		ll i=0;
		for(pair<ll,ll> pr:m){
			bitlen[i]=pr.second+1;
			i++;
		}
		vector<ll> bit(N+1, 0);
		while(!bit[N]){
			ll t=1,i=0;
			for(pair<ll,ll> pr:m){
				t*=power(pr.first,bit[i]);
				i++;
			}
			res.push_back(t);
			for(ll i=0; ++bit[i]==bitlen[i]; i++)bit[i]=0;
		}
		return res;
	}
};


inline static void upflag(int *flags,int BITS,int i) {
	flags[i / BITS] |= 1 << (i % BITS);
}

inline static int getflag(int *flags,int BITS,int i) {
	return (flags[i / BITS] >> (i % BITS)) & 1;
}

//MAXVAL以下の素数を詰めたvectorを返す
vector<ll> eratosthenes(int MAXVAL){
	int BITS = (sizeof(int) * 8);
	int FLAGS_NUM = (MAXVAL / BITS + 1);
	int flags[FLAGS_NUM] = {};
	int i, j, f, s;
	int max = (int)sqrt(MAXVAL) + 1;
	vector<ll> primelist;
	if(MAXVAL<=1)return primelist;
	primelist.push_back(2);if(MAXVAL<=2)return primelist;
	primelist.push_back(3);if(MAXVAL<=3)return primelist;
	for (i = 5, f = 4; i <= max; i += (f = 6 - f)) {
		if (!getflag(flags,BITS,i)) {
			primelist.push_back(i);
			s = MAXVAL / i;
			for (j = s - !(s & 1); j >= i; j -= 2) {
				if (!getflag(flags,BITS,i))
					upflag(flags,BITS,i*j);
			}
		}
	}
	for (; i <= MAXVAL; i += (f = 6 - f)){
		if (!getflag(flags,BITS,i)){
			primelist.push_back(i);
		}
	}
	return primelist;
}

/*-----8<-----library-----8<-----*/

constexpr ll N_MAX = 1e5;
constexpr ll K_MAX = 1e5;
//constexpr ll MOD = 1e9+7;

ll N, K;

void solve() {
	ll n = 1e6;
	vector<ll> primelist = eratosthenes(n);
	//Eratosthenes er(1e5+2);
	scanf("%lld%lld", &N, &K);
	
	
	Modint ans = 0;
	ans+=Modint(K).pow(N);

	vector<Modint> dp(K+1,0);

	for(ll i=K;i>=2;i--){
		ll kosu=K/i;
		Modint t=Modint(kosu).pow(N);
		/*
		if(kosu>1){
			Modint hikisugi=Modint(kosu-1).pow(N);
			t-=hikisugi;
		}
		*/
		debug(t);
		for(ll j=2;i*j<=K;j++){
			//ll kosu=K/(i*j);
			//Modint hikisugi=Modint(kosu).pow(N);
			Modint hikisugi=dp[i*j];
			t-=hikisugi;
			debug(hikisugi);
		}

		debug(i,t);
		//v[i]=t;

		ans+=t*(i-1);
		dp[i]=t;

	}
	

	p(ans);
	//debug(v);
	
}

// https://atcoder.jp/contests/abc162/tasks/abc162_e
signed main() {
	solve();
	return 0;
}


Measured memory_bytes: 4948