Q: What is the sum of all factors of the number 31,220,780 excluding 31,220,780?

 A: 34,342,900

Why is 34,342,900 the sum of all factors of 31,220,780, excluding 31,220,780?

The factors of the number 31,220,780 are: 1, 2, 4, 5, 10, 20, 1561039, 3122078, 6244156, 7805195, 15610390, 31220780.

If you add them up, you will get the total of 31,220,814. Now subtract 31,220,780 to get 34,342,900


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