import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    long N = sc.nextLong();
    int ans = 0;
    for(int i = 1; i * i <= N; i++) {
      if(N % i == 0) {
        if(i * i == N) {
          ans += 1;
        } else {
          ans += 2;
        }
      }
    }
    System.out.println(ans);
  }
}