using System;

public class Hello
{
    public static void Main()
    {
        var n = long.Parse(Console.ReadLine().Trim());
        var n2 = (int)Math.Sqrt(n);
        var ans = 0;
        for (int i = 1; i <= n2; i++)
            if (n % i == 0)
                if (n / i == i) ans += 1;
                else ans += 2;
        Console.WriteLine(ans);
    }
}