import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int m = 0;

        for (int i = 1; i <= n; i++) {
            if (n%i==0){
                m+=1;
            }


        }
        System.out.println(m);
    }
}