// The "P2" class. Unit Rectangles
import java.awt.*;
import java.io.*;
import java.util.*;

public class P2
{
    private static int[] rectangles;
    public static void compute (int n)
    {
	for (int w = 1 ; w <= Math.sqrt (n) ; w++)
	{
	    if (n % w == 0)
	    {
		rectangles [n]++;
	    }
	}

	rectangles [n] += rectangles [n - 1];
    }


    public static void main (String[] args) throws IOException
    {
	BufferedReader in = new BufferedReader (new FileReader ("DATA2.TXT"));
	BufferedWriter out = new BufferedWriter (new FileWriter ("OUT2.TXT"));
	rectangles = new int [1000]; // index 0 = rect of 1
	int largest = 0;

	for (int cases = 0 ; cases < 5 ; cases++)
	{
	    int n = Integer.parseInt (in.readLine ());
	    if (n > largest)
	    {
		for (int i = largest + 1 ; i <= n ; i++)
		    compute (i);
		largest = n;
	    }
	    //System.out.println (rectangles [n]);
	    out.write ("" + rectangles [n]);
	}

	in.close ();
	out.close ();
    } // main method
} // P1 class