Q: What is the sum of all factors of the number 81,485,789 excluding 81,485,789?

 A: 20,106,979

Why is 20,106,979 the sum of all factors of 81,485,789, excluding 81,485,789?

The factors of the number 81,485,789 are: 1, 7, 11, 77, 1058257, 7407799, 11640827, 81485789.

If you add them up, you will get the total of 81,485,809. Now subtract 81,485,789 to get 20,106,979


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