#include <iostream>
#include <stdio.h>
#include <string>
#include <vector>
#include <cmath>
#include <algorithm>
#define MP make_pair
using ll = long long;
using namespace std;

int main()
{
  ll N;
  cin >> N;
  int cnt=0;
  for(int i=1; i < sqrt(N); i++){
    if(N%i == 0){
      cnt++;
    }
  }
  cnt *= 2;
  if(fmod(N,sqrt(N)) == 0)
    cnt++;
  cout << cnt << endl;

  return 0;
}