Q: What is the sum of all factors of the number 809,040 excluding 809,040?

A: 1,699,728

Why is 1,699,728 the sum of all factors of 809,040, excluding 809,040?

The factors of the number 809,040 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 3371, 6742, 10113, 13484, 16855, 20226, 26968, 33710, 40452, 50565, 53936, 67420, 80904, 101130, 134840, 161808, 202260, 269680, 404520, 809040.

If you add them up, you will get the total of 809,041. Now subtract 809,040 to get 1,699,728