#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int cnt = 0;
  for (int i = 1; i <= sqrt(n); i++) {
    if (n % i == 0) {
      if (n / i == i)
        cnt++;
      else
        cnt = cnt + 2;
    }
  }
  cout << cnt - 1 << endl;
  return 0;
}
