#include <iostream>
#include <algorithm>
#include <iomanip>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>

static const int MOD = 1000000007;
using ll = long long;
using u32 = uint32_t;
using u64 = uint64_t;
using namespace std;

template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;


#include <random>

using u128 = __uint128_t;

struct mod64 {
    u64 n;
    static u64 mod, inv, r2;
    mod64() : n(0) {}
    mod64(u64 x) : n(init(x)) {}
    static u64 init(u64 w) { return reduce(u128(w) * r2); }
    static void set_mod(u64 m) {
        mod = inv = m;
        for (int i = 0; i < 5; ++i) inv *= 2 - inv * m;
        r2 = -u128(m) % m;
    }
    static u64 reduce(u128 x) {
        u64 y = u64(x >> 64) - u64((u128(u64(x) * inv) * mod) >> 64);
        return ll(y) < 0 ? y + mod : y;
    };
    mod64& operator+=(mod64 x) { n += x.n - mod; if(ll(n) < 0) n += mod; return *this; }
    mod64 operator+(mod64 x) const { return mod64(*this) += x; }
    mod64& operator*=(mod64 x) { n = reduce(u128(n) * x.n);  return *this; }
    mod64 operator*(mod64 x) const { return mod64(*this) *= x; }
    u64 val() const { return reduce(n); }
};

u64 mod64::mod, mod64::inv, mod64::r2;

bool suspect(u64 a, u64 s, u64 d, u64 n){
    if(mod64::mod != n) mod64::set_mod(n);
    mod64 x(1), xx(a), one(x), minusone(n-1);
    while(d > 0){
        if(d&1) x = x * xx;
        xx = xx * xx;
        d >>= 1;
    }
    if (x.n == one.n) return true;
    for (int r = 0; r < s; ++r) {
        if(x.n == minusone.n) return true;
        x = x * x;
    }
    return false;
}

template<class T>
bool miller_rabin(T n){
    if (n <= 1 || (n > 2 && n % 2 == 0)) return false;
    u64 d = n - 1, s = 0;
    while (!(d&1)) {++s; d >>= 1;}
    static const u64 v[] = {2, 325, 9375, 28178, 450775, 9780504, 1795265022};
    static const u64 v_small[] = {2, 7, 61};
    if(n <= 4759123141LL){
        for (auto &&p : v_small) {
            if(p >= n) break;
            if(!suspect(p, s, d, n)) return false;
        }
    }else {
        for (auto &&p : v) {
            if(p >= n) break;
            if(!suspect(p, s, d, n)) return false;
        }
    }
    return true;
}

template<typename T>
struct ExactDiv {
    T t, i, val;
    ExactDiv() {}
    ExactDiv(T n) : t(T(-1) / n), i(mul_inv(n)) , val(n) {};
    T mul_inv(T n) {
        T x = n;
        for (int j = 0; j < 5; ++j) x *= 2 - n * x;
        return x;
    }
    bool divide(T n) const {
        if(val == 2) return !(n & 1);
        return n * this->i <= this->t;
    }
};

vector<ExactDiv<u64>> get_prime(int n){
    if(n <= 1) return vector<ExactDiv<u64>>();
    vector<bool> is_prime(n+1, true);
    vector<ExactDiv<u64>> prime;
    is_prime[0] = is_prime[1] = false;
    for (int i = 2; i <= n; ++i) {
        if(is_prime[i]) prime.emplace_back(i);
        for (auto &&j : prime){
            if(i*j.val > n) break;
            is_prime[i*j.val] = false;
            if(j.divide(i)) break;
        }
    }
    return prime;
}
const auto primes = get_prime(12000);

random_device rng;

u64 Isqrt(u64 const &x){
    u64 ret = (u64)sqrtl(x);
    while(ret > 0 && ret*ret > x) --ret;
    while(x - ret*ret > 2*ret) ++ret;
    return ret;
}

u64 Icbrt(u64 const &x){
    u64 ret = (u64)cbrtl(x);
    while(ret > 0 && ret*ret*ret > x) --ret;
    while(x - ret*ret*ret > 3*ret*ret) ++ret;
    return ret;
}

u64 gcd_(u64 a, const u64 b){ return b ? gcd_(b, a%b) : a; }

// SQUFOF https://github.com/radii/msieve
vector<u32> saved;
u64 squfof_iter(u64 &x, u64 &k, u64 &it_max, u32 cutoff_div) {
    if (gcd_(k, x) != 1) return gcd_(k, x);
    u64 scaledn = k*x;
    if (scaledn >> 62) return 1;
    u32 sqrtn = Isqrt(scaledn), cutoff = Isqrt(2*sqrtn)/cutoff_div, q0 = 1, p1 = sqrtn, q1 = scaledn - p1*p1;
    if (q1 == 0) return gcd_(x, (u64)p1);
    u32 mult = 2*k, coarse_cutoff = cutoff*mult, p0 = 0, sqrtq = 0, i, j;
    for (i = 0; i < it_max; ++i) {
        u32 q = 1, bits = 0, tmp = sqrtn + p1 - q1;
        if (tmp >= q1) q += tmp / q1;
        p0 = q*q1 - p1, q0 += (p1-p0)*q;
        if (q1 < coarse_cutoff) {
            tmp = q1 / gcd_(q1, mult);
            if (tmp < cutoff) saved.emplace_back(tmp);
        }
        tmp = q0;
        while (!(tmp & 1)) bits++, tmp >>= 1;
        if (!(bits & 1) && ((tmp & 7) == 1)) {
            sqrtq = Isqrt(q0);
            if (sqrtq*sqrtq == q0) {
                for (j = 0; j < saved.size(); ++j) if (saved[j] == sqrtq) break;
                if (j == saved.size()) break; // not found
            }
        }
        tmp = sqrtn + p0 - q0, q = 1;
        if (tmp >= q0) q += tmp / q0;
        p1 = q * q0 - p0, q1 += (p0-p1)*q;
        if (q0 < coarse_cutoff) {
            tmp = q0 / gcd_(q0, mult);
            if (tmp < cutoff) saved.emplace_back(tmp);
        }
    }
    if (sqrtq == 1 || i == it_max) return 1;
    q0 = sqrtq, p1 = p0 + sqrtq*((sqrtn - p0)/sqrtq), q1 = (scaledn - (u64)p1*p1)/q0;
    for (j = 0; j < it_max; ++j) {
        u32 q = 1, tmp = sqrtn + p1 - q1;
        if (tmp >= q1) q += tmp / q1;
        p0 = q*q1 - p1, q0 += (p1 - p0)*q;
        if (p0 == p1) { q0 = q1; break; }
        q = 1, tmp = sqrtn + p0 - q0;
        if (tmp >= q0) q += tmp / q0;
        p1 = q*q0 - p0, q1 += (p0 - p1)*q;
        if (p0 == p1) break;
    }
    if (j == it_max) return 1; // random fail
    return  gcd_((u64)q0, x);
}



u64 SQUFOF(u64 n){
    constexpr array<u64, 16> multipliers = {1,3,5,7,11,15,21,33,35,55,77,105,165,231,385,1155};
    constexpr array<u64, 7> fact = {1, 4, 16, 64, 256, 1024, 4096};
    u64 a = Isqrt(n);
    if(a*a == n) return a;
    a = Icbrt(n);
    if(a*a*a == n) return a;
    for (auto &&i : fact) {
        for (auto &&j : multipliers) {
            if(numeric_limits<u64>::max()/j <= n) continue;
            u64 it_max = 300*i; u64 jj = j;
            u64 val = squfof_iter(n, jj, it_max, 1);
            if(val != 1 && val != n) return val;
        }
    }
    return 1;
}

template<class T>
T pollard_rho2(T n) {
    uniform_int_distribution<T> ra(1, n-1);
    if(mod64::mod != n) mod64::set_mod(n);
    while(true){
        u64 c_ = ra(rng), g = 1, r = 1, m = 500;
        while(c_ == n-2) c_ = ra(rng);
        mod64 y(ra(rng)), xx(0), c(c_), ys(0), q(1);
        while(g == 1){
            xx.n = y.n;
            for (int i = 1; i <= r; ++i) {
                y *= y; y += c;
            }
            T k = 0; g = 1;
            while(k < r && g == 1){
                for (int i = 1; i <= (m > (r-k) ? (r-k) : m); ++i) {
                    ys.n = y.n; y *= y; y += c;
                    u64 xxx = xx.val(), yyy = y.val();
                    q *= mod64(xxx > yyy ? xxx - yyy : yyy - xxx);
                }
                g = gcd_(q.val(), n);
                k += m;
            }
            r *= 2;
        }
        if(g == n) g = 1;
        while (g == 1){
            ys *= ys; ys += c;
            u64 xxx = xx.val(), yyy = ys.val();
            g = gcd_(xxx > yyy ? xxx - yyy : yyy - xxx, n);
        }
        if (g != n && miller_rabin(g)) return g;
    }
}

template<class T>
vector<T> prime_factor(T n){
    vector<T> a, res;
    for (auto &&i : primes) {
        while (i.divide(n)){
            res.emplace_back(i.val);
            n /= i.val;
        }
    }
    if(miller_rabin(n)){
        res.emplace_back(n);
        n = 1;
    }
    if(n != 1){
        a.emplace_back(n);
        while(!a.empty()){
            ll x = a.back(); a.pop_back();
            if(miller_rabin(x)) res.emplace_back(x);
            else {
                ll factor = SQUFOF(x);
                while(factor == 1 || factor == x) factor = pollard_rho2(x);
                a.emplace_back(factor);
                a.emplace_back(x/factor);
            }
        }
    }
    sort(res.begin(),res.end());
    return res;
}
int table[] = {0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10};
int main() {
    ll n;
    cin >> n;
    auto p = prime_factor(n);
    map<ll, int> a;
    for (auto &&i : p) {
        a[i]++;
    }
    int ans = 0;
    for (auto &&j : a) {
        ans += table[j.second];
    }
    cout << ans << "\n";
    return 0;
}

Measured memory_bytes: 3788