Q: What is the sum of all factors of the number 78,280 excluding 78,280?

 A: 108,920

Why is 108,920 the sum of all factors of 78,280, excluding 78,280?

The factors of the number 78,280 are: 1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 1030, 1957, 2060, 3914, 4120, 7828, 9785, 15656, 19570, 39140, 78280.

If you add them up, you will get the total of 78,388. Now subtract 78,280 to get 108,920


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