C++ :

#include <bits/stdc++.h>
using namespace std;
 
int main(){
    int n,i,j;
    cin>>n;
    for(i = 1;i <= n;i++){
    	cout<<i<<":";
    	for(j = 1;j <= n;j++){
    		if(i % j == 0){
    			cout<<j<<" ";
			}
		}
		cout<<endl;
	}
}

Java :

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		for(int i=1;i<=n;i++) {
			yinzi(i);
			System.out.println();
		}
		sc.close();
		
			
		}
	
	
	
	public static void yinzi(int n) {
		System.out.print(n+":");
		for(int i=1;i<=n;i++) {
			if(n%i==0) {
				System.out.print(i+" ");
			}
		}
	}
}

Python :

n = int(input())
for i in range(1, n + 1):
    print('%d' % i, end=':')
    for j in range(1, n + 1):
        if i % j == 0:
            print('%d ' % j, end='')
    print()