Q: What is the sum of all factors of the number 642,723,140 excluding 642,723,140?

 A: 706,995,496

Why is 706,995,496 the sum of all factors of 642,723,140, excluding 642,723,140?

The factors of the number 642,723,140 are: 1, 2, 4, 5, 10, 20, 32136157, 64272314, 128544628, 160680785, 321361570, 642723140.

If you add them up, you will get the total of 642,723,846. Now subtract 642,723,140 to get 706,995,496


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