Q: What is the sum of all factors of the number 81,840,580 excluding 81,840,580?

 A: 90,024,680

Why is 90,024,680 the sum of all factors of 81,840,580, excluding 81,840,580?

The factors of the number 81,840,580 are: 1, 2, 4, 5, 10, 20, 4092029, 8184058, 16368116, 20460145, 40920290, 81840580.

If you add them up, you will get the total of 81,840,670. Now subtract 81,840,580 to get 90,024,680


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