package user_id;

import java.util.HashSet;
import java.util.Scanner;
import java.util.Set;

public class UseId01 {

	public static void main(String[] args) {

		Scanner sc = new Scanner(System.in);

		int N = sc.nextInt();
		Set<String> X = new HashSet<>();

		for(int i = 1; i <= N; i++) {
			for(int j = 1; j <= N; j++) {
				if(i * j == N) {
					X.add("" + i + j);
				}
			}
		}
		System.out.println(X.size());

		sc.close();
	}

}