#include <iostream>

using namespace std;

int main () {
	
	long n;
	cin >> n;
	
	int ans = 0;
	for (long i = 1; i <= n; ++i) {
		long il = i;
		long ir = n / i;
		if (il * ir != n) continue;
		ans++;
	}
	
	cout << ans << endl;
}