Calculating divisors in java.

Source:

public class Divisors {

   public static void main(String[] args) { 
      int N = Integer.parseInt(args[0]);

      for (int i = 1; i <= N; i++) {
         System.out.print(i+ ": ");
         for (int j = 1; j <= N; j++) {
            if (i % j == 0) {
               System.out.print(j + " "); 
            }
         }
         System.out.println("");
      }
   }
}

Output:

   $ java Divisors 15
   1: 1 
   2: 1 2 
   3: 1 3 
   4: 1 2 4 
   5: 1 5 
   6: 1 2 3 6 
   7: 1 7 
   8: 1 2 4 8 
   9: 1 3 9 
   10: 1 2 5 10 
   11: 1 11 
   12: 1 2 3 4 6 12 
   13: 1 13 
   14: 1 2 7 14 
   15: 1 3 5 15