#include <iostream>

using namespace std;

int main() {
	long long n;
	cin >> n;

	long  long ans = 0;
	for (long long i = 1; i * i <= n; i++) {
		if(n % i == 0) {
			ans += i * i == n ? 1 : 2;
		}
	}
	cout << ans << endl;
	return 0;
}