Q: What is the sum of all factors of the number 231,215,140 excluding 231,215,140?

 A: 291,687,380

Why is 291,687,380 the sum of all factors of 231,215,140, excluding 231,215,140?

The factors of the number 231,215,140 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 889289, 1778578, 3557156, 4446445, 8892890, 11560757, 17785780, 23121514, 46243028, 57803785, 115607570, 231215140.

If you add them up, you will get the total of 231,215,431. Now subtract 231,215,140 to get 291,687,380


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