#include<iostream>
using namespace std;
int main() {
	int N;
	cin >> N;
	int X = 0;
	int i;
	for (i = 1; i*i < N; i++) {
		if (N%i == 0) X += 2;
	}
	//if (i*i == N) X++;
	cout << X << endl;
}