Q: What is the sum of all factors of the number 420,509 excluding 420,509?

 A: 28,771

Why is 28,771 the sum of all factors of 420,509, excluding 420,509?

The factors of the number 420,509 are: 1, 23, 47, 389, 1081, 8947, 18283, 420509.

If you add them up, you will get the total of 420,537. Now subtract 420,509 to get 28,771


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