Q: What is the sum of all factors of the number 521,580 excluding 521,580?

 A: 939,012

Why is 939,012 the sum of all factors of 521,580, excluding 521,580?

The factors of the number 521,580 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 8693, 17386, 26079, 34772, 43465, 52158, 86930, 104316, 130395, 173860, 260790, 521580.

If you add them up, you will get the total of 522,519. Now subtract 521,580 to get 939,012


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