import java.util.Arrays;
import java.util.Scanner;

class Main {
	public static void main(String[] args) throws Exception {
		new Main().run();
	}
	
	void run() {
		Scanner sc=new Scanner(System.in);
		long N=sc.nextLong();
		int ans=0;
		for(long div=1;div*div<=N;++div) {
			if(N%div!=0)continue;
			++ans;
			if(N/div!=div)++ans;
		}
		System.out.println(ans);
	}
	
	static void tr(Object... objects) {
		System.out.println(Arrays.deepToString(objects));
	}
	
}