Q: What is the sum of all factors of the number 680,505 excluding 680,505?

 A: 564,039

Why is 564,039 the sum of all factors of 680,505, excluding 680,505?

The factors of the number 680,505 are: 1, 3, 5, 7, 15, 21, 35, 105, 6481, 19443, 32405, 45367, 97215, 136101, 226835, 680505.

If you add them up, you will get the total of 681,069. Now subtract 680,505 to get 564,039


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