using static System.Math;
using System;

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = Array.ConvertAll(line, int.Parse);
        getAns(n, a);
    }
    static void getAns(int n, int[] a)
    {
        var ans = 0;
        Array.Sort(a);
        var amax = a[n - 1];
        var b = new bool[amax + 1];
        var used = new bool[amax + 1];
        for (int i = 0; i < n; i++) b[a[i]] = true;
        for (int i = 0; i < n; i++)
        {
            if (used[a[i]]) continue;
            var p = a[i];
            var count = 0;
            {
                while (p <= amax)
                {
                    if (b[p]) { count++; used[p] = true; p += p; }
                    else p += a[i];
                }
            }
            ans = Max(ans, count);
        }
        Console.WriteLine(ans);
    }
}