Q: What is the sum of all factors of the number 640,252 excluding 640,252?

 A: 497,388

Why is 497,388 the sum of all factors of 640,252, excluding 640,252?

The factors of the number 640,252 are: 1, 2, 4, 67, 134, 268, 2389, 4778, 9556, 160063, 320126, 640252.

If you add them up, you will get the total of 640,749. Now subtract 640,252 to get 497,388


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