Q: What is the sum of all factors of the number 657,120,020 excluding 657,120,020?

 A: 767,347,948

Why is 767,347,948 the sum of all factors of 657,120,020, excluding 657,120,020?

The factors of the number 657,120,020 are: 1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1059871, 2119742, 4239484, 5299355, 10598710, 21197420, 32856001, 65712002, 131424004, 164280005, 328560010, 657120020.

If you add them up, you will get the total of 657,120,787. Now subtract 657,120,020 to get 767,347,948


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