#include <bits/stdc++.h>

#define debug(x) cout <<"DEBUG"<<" "<< #x << ":" << x << '\n'
#define rep(i,n) for(int_fast32_t i = 0; i < ((int_fast32_t)(n)); i++)   // 0-indexed昇順
#define rep1(i,n) for(int_fast32_t i = 1; i <= ((int_fast32_t)(n)); i++) // 1-indexed昇順
#define rrep(i,n) for(int_fast32_t i = ((int_fast32_t)(n)-1); i >= 0; i--)  // 0-indexed降順
#define rrep1(i,n) for(int_fast32_t i = ((int_fast32_t)(n)); i >= 1; i--)   // 1-indexed降順
#define all(x) (x).begin(),(x).end()

using namespace std;

template<typename T>
using vec = vector<T>;
using i32 = int_fast32_t;
using i64 = int_fast64_t;
using u32 = uint_fast32_t;
using u64 = uint_fast64_t;
using ll = long long;
using ld = long double;
using vi = vec<int_fast32_t>;
using vl = vec<int_fast64_t>;
using vld = vec<ld>;
using vii = vec<vi>;  // 2次元配列
using PII = pair<int_fast32_t, int_fast32_t>;

template<class T>
using maxheap = std::priority_queue<T>;
template<class T>
using minheap = std::priority_queue<T, std::vector<T>, std::greater<T>>;

template<class T,class U> inline bool chmax(T &a, const U &b){if(a<b){a=b;return 1;}return 0;}
template<class T,class U> inline bool chmin(T &a, const U &b){if(a>b){a=b;return 1;}return 0;}

const ld Pi = std::acos(-1.0L);
constexpr ll infll = (1LL<<62)-1;
constexpr int inf = (1<<30)-1;
const int mod = 1000000007;
// const int mod = 998244353;

/*MOD int=============================*/
template<std::int_fast64_t Mod>
class modint {
    using i64 = std::int_fast64_t;
public:
    i64 val;
    //constructor
    constexpr modint(const i64 p=0) noexcept : val(p>=0 ? p%Mod : (Mod+(p%Mod))%Mod) {}

    //std::cin, std::cout
    friend std::ostream &operator<<(std::ostream &os, const modint &x) {
        return os << x.val;
    }
    friend std::istream &operator>>(std::istream &is, modint &x) {
        is >> x.val;
        x.val %= Mod;
        if(x.val < 0) x.val += Mod;  // <- 負数対応
        return is;
    }

    //operator
    constexpr modint operator+(const modint b) const noexcept { return modint(*this) += b; }

    constexpr modint operator-(const modint b) const noexcept { return modint(*this) -= b; }

    constexpr modint operator*(const modint b) const noexcept { return modint(*this) *= b; }

    constexpr modint operator/(const modint b) const noexcept { return modint(*this) /= b; }

    constexpr modint operator-() const noexcept { return modint() - *this; }

    constexpr bool operator==(const modint &b) const noexcept { return this->val == b.val; }

    constexpr bool operator!=(const modint &b) const noexcept { return this->val != b.val; }

    constexpr modint &operator=(const modint b) noexcept {
        val = b.val;
        return *this;
    }
    constexpr modint &operator=(const i64 b) noexcept {
        val = modint<Mod>(b).val;
        return *this;
    }
    constexpr modint &operator+=(const modint b) noexcept {
        if((val += b.val) >= Mod) val -= Mod;
        return *this;
    }
    constexpr modint &operator-=(const modint b) noexcept {
        if(val < b.val) val += Mod;
        val -= b.val;
        return *this;
    }
    constexpr modint &operator*=(const modint b) noexcept {
        val = val * b.val % Mod;
        return *this;
    }
    constexpr modint &operator/=(modint b) noexcept {
        val *= b.inverse().val;
        val %= Mod;
        return *this;
    }
    constexpr modint inverse() noexcept {
        i64 m=Mod, u=1, v=0, t=1;
        while(m) {
            t = val/m;
            val -= t*m; std::swap(val,m);
            u -= t*v; std::swap(u,v);
        }
        return modint(u);
    }
    // calc val^n
    constexpr  modint pow(i64 n) noexcept {
        modint res = 1, a = val;
        while(n > 0) {
            if(n & 1) res = res * a;
            a = a * a;
            n >>= 1;
        }
        return res;
    }
};
using mint = modint<mod>;

mint d[100005], tmp;
/*FUNCs=================================================*/


/*MAIN==================================================*/
signed main(){
    int START_TIME = clock();
    cin.tie(nullptr);
    ios::sync_with_stdio(false);   //cin cout 高速化
//    cout << fixed << setprecision(15);

    /**
     * gcd(A) = i となるものの個数をpとして
     * Sum(p*i)が答え
     *
     * gcd(A) = i*j (j is Natural number) となるものは数えやすい
     * これは全部iの倍数であるような組の個数なので、(k/i)^n個である
     *
     * Di = Dij - Sum(Di*(j-1))
     * -> iがでかい方からDiを求めていって、上の要領で求めていく
     */

    i32 n, k; cin >> n >> k;
    for(i32 i = 1; i <= k; ++i) {  // make table
        tmp = k/i;
        d[i] = tmp.pow(n);
    }
    mint answer = 0;
    for(i32 i = k; i >= 1; --i) {  // calc
        d[i];
        for(i32 j = 2; i*j <= k; ++j) {
            d[i] -= d[i*j];  // d[i]をこの操作で正しい値にする(これを上から繰り返しながら計算している)
        }
        answer += d[i] * i;
    }

    cout << answer << '\n';

    // printf("ExecutionTime: %d /ms\n",1000*(int)((clock()-START_TIME)/CLOCKS_PER_SEC));
}


Measured memory_bytes: 4400