import java.util.*;
import java.io.*;

public class S4_2018{

	static HashMap<Long, Long> set = new HashMap<Long, Long>();
	public static void main(String[] args) throws IOException {
		long N = readLong(); set.put((long) 1, (long) 1); println(rekt(N));
		exit();
	}

	public static long rekt(long n) {
		if(n == 1) return 1;
		if(set.containsKey(n)) return set.get(n);
		long ans = 0;
//		System.out.println(N);
		for(int i = 2; i<=Math.sqrt(n); i++) ans += rekt(n/i);
		int last = (int) Math.sqrt(n);
		for(int j = (int) Math.sqrt(n); j>=1; j--) {
			ans += (Math.floor(n/1.0/j)-last)*rekt(j);
			last = (int) Math.floor(n/1.0/j);
		}
		set.put(n, ans);
		return ans;
	}

	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	static StringTokenizer st;
	static PrintWriter pr = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));

	static String next() throws IOException {
		while (st == null || !st.hasMoreTokens()) st = new StringTokenizer(br.readLine().trim());
		return st.nextToken();
	}

	static int readInt() throws IOException {return Integer.parseInt(next());}
	static long readLong() throws IOException {return Long.parseLong(next());}
	static String readLine() throws IOException {return br.readLine().trim();}
	static void print(Object o) {pr.print(o);}
	static void println(Object o) {pr.println(o);}
	static void println() {pr.println();}

	static void exit() throws IOException {
		br.close();
		pr.close();
		System.exit(0);
	}
}