#include <bits/stdc++.h>
#define PI 3.14159265359
using namespace std;

int binarySearch(int n, vector<int> v);

int main() {
	int64_t N;
	cin >> N;

	int64_t rt = sqrt(N);
	int64_t cnt = 0;
	for (int64_t i = 1; i <= rt; i++) {
		if (!(N % i)) {
			cnt++;
		}
	}

	cnt *= 2;
	if (!(N % rt)) {
		if (rt == (N / rt)) cnt--;
	}

	cout << cnt << endl;
}