using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


class Program
{
    static void Main(string[] args)
    {
        new Magatro().Solve();
    }
}

class Magatro
{
    long N;

    private void Scan()
    {
        N = long.Parse(Console.ReadLine());
    }

    public void Solve()
    {
        Scan();
        int ans = 0;
        for(long i = 1; i * i <= N; i++)
        {
            if (N % i == 0)
            {
                if(N/i == i)
                {
                    ans++;
                }
                else
                {
                    ans += 2;
                }
            }
        }
        Console.WriteLine(ans);
    }

}