Q: What is the sum of all factors of the number 389,280 excluding 389,280?

A: 838,464

Why is 838,464 the sum of all factors of 389,280, excluding 389,280?

The factors of the number 389,280 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 811, 1622, 2433, 3244, 4055, 4866, 6488, 8110, 9732, 12165, 12976, 16220, 19464, 24330, 25952, 32440, 38928, 48660, 64880, 77856, 97320, 129760, 194640, 389280.

If you add them up, you will get the total of 390,118. Now subtract 389,280 to get 838,464