Q: What is the sum of all factors of the number 645,241,720 excluding 645,241,720?

 A: 806,552,240

Why is 806,552,240 the sum of all factors of 645,241,720, excluding 645,241,720?

The factors of the number 645,241,720 are: 1, 2, 4, 5, 8, 10, 20, 40, 16131043, 32262086, 64524172, 80655215, 129048344, 161310430, 322620860, 645241720.

If you add them up, you will get the total of 645,242,526. Now subtract 645,241,720 to get 806,552,240


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