using System;
using System.Collections.Generic;
using System.Linq;

public class yukicoder
{
    public static void Main()
    {
        long n = long.Parse(Console.ReadLine());
        long sqrt = (long)Math.Truncate(Math.Sqrt(n));
        int count = 0;
        
        for(int i = 1; i <= sqrt; i++)
        {
            if(n % i == 0)
            {
                count = count + 2;
            }
        }
        
        if(sqrt * sqrt == n)
        {
            count--;
        }

        Console.WriteLine(count);
        
    }
}