import java.util.Scanner;

public class Main {
    
    public static void main(String[] args) {
        int count = 0;
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        for(int i = 1;i <= n;i++) {
            if(n % i == 0)
                count++;
        }
        System.out.println(count);
    }
}