Q: What is the sum of all factors of the number 123,456,789 excluding 123,456,789?

 A: 54,966,027

Why is 54,966,027 the sum of all factors of 123,456,789, excluding 123,456,789?

The factors of the number 123,456,789 are: 1, 3, 9, 3607, 3803, 10821, 11409, 32463, 34227, 13717421, 41152263, 123456789.

If you add them up, you will get the total of 123,456,843. Now subtract 123,456,789 to get 54,966,027


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