#include<iostream>
#include<stdio.h>
#include<math.h>
using namespace std;

int main(){

    int x =0;
    cin >> x;
    int counter = 0 ;
    int sqr = sqrt(x)+1;
    int divides = 2;
    while (divides <= sqr)
    {
        
        while(x % divides == 0){
            counter++;
            x = x / divides;
        }

        divides++;
    }

    if(x != 1) counter++;
    
    cout << counter + 1 ;

    
    return 0;
}