C++ :

#include <iostream>
using namespace std;

int main() {
   int A, count = 0;
   cin >> A;

   for (int i = 1; i <= A; ++i) {
      if (A % i == 0 && i <= A / i) {
         ++count;
      }
   }

   cout << count << endl;
   return 0;
}