Q: What is the sum of all factors of the number 128,402,030 excluding 128,402,030?

 A: 102,721,642

Why is 102,721,642 the sum of all factors of 128,402,030, excluding 128,402,030?

The factors of the number 128,402,030 are: 1, 2, 5, 10, 12840203, 25680406, 64201015, 128402030.

If you add them up, you will get the total of 128,402,132. Now subtract 128,402,030 to get 102,721,642


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