import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

import static java.lang.System.in;

public class No537 {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        int N = Integer.parseInt(reader.readLine());

        int counter = 0;
        for (int i = 1; i * i <= N; i++) {
            if (N % i == 0) {
                if (i*i == N) {
                    counter += 1;
                } else {
                    counter += 2;
                }
            }
        }

        System.out.println(counter);
    }
}