Q: What is the sum of all factors of the number 317,040 excluding 317,040?

A: 666,528

Why is 666,528 the sum of all factors of 317,040, excluding 317,040?

The factors of the number 317,040 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1321, 2642, 3963, 5284, 6605, 7926, 10568, 13210, 15852, 19815, 21136, 26420, 31704, 39630, 52840, 63408, 79260, 105680, 158520, 317040.

If you add them up, you will get the total of 317,706. Now subtract 317,040 to get 666,528