Q: What is the sum of all factors of the number 421,120,305 excluding 421,120,305?

 A: 308,821,635

Why is 308,821,635 the sum of all factors of 421,120,305, excluding 421,120,305?

The factors of the number 421,120,305 are: 1, 3, 5, 9, 15, 45, 9358229, 28074687, 46791145, 84224061, 140373435, 421120305.

If you add them up, you will get the total of 421,120,613. Now subtract 421,120,305 to get 308,821,635


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