d.cpp

#include <bits/stdc++.h>
#define f first
#define s second
#define endl "\n"
#define int ll

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int, int> pii;
template <typename T1, typename T2>
ostream &operator <<(ostream &os, pair<T1, T2> p){os << p.first << " " << p.second; return os;}
template <typename T>
ostream &operator <<(ostream &os, vector<T> &v){for(T i : v)os << i << ", "; return os;}
template <typename T>
ostream &operator <<(ostream &os, set<T> s){for(T i : s) os << i << ", "; return os;}
template <typename T1, typename T2>
ostream &operator <<(ostream &os, map<T1, T2> m){for(pair<T1, T2> i : m) os << i << endl; return os;}

int N;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL); 
    cin >> N;
    int ans = 0;
    for(int i = 2; i <= sqrt(N); i++){
        int div = 0;
        while(N % i == 0){
            N /= i;
            div++;
        }
        for(int j = 1; div >= j; j++){
            div -= j;
            ans++;
        }
    }
    cout << ans + (N > 1) << endl;
    return 0;
}