Q: What is the sum of all factors of the number 256,561,442 excluding 256,561,442?

 A: 128,280,724

Why is 128,280,724 the sum of all factors of 256,561,442, excluding 256,561,442?

The factors of the number 256,561,442 are: 1, 2, 128280721, 256561442.

If you add them up, you will get the total of 256,561,570. Now subtract 256,561,442 to get 128,280,724


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