Q: What is the sum of all factors of the number 256,561,215 excluding 256,561,215?

 A: 153,936,753

Why is 153,936,753 the sum of all factors of 256,561,215, excluding 256,561,215?

The factors of the number 256,561,215 are: 1, 3, 5, 15, 17104081, 51312243, 85520405, 256561215.

If you add them up, you will get the total of 256,561,368. Now subtract 256,561,215 to get 153,936,753


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