Q: What is the sum of all factors of the number 128,421,886 excluding 128,421,886?

 A: 64,275,458

Why is 64,275,458 the sum of all factors of 128,421,886, excluding 128,421,886?

The factors of the number 128,421,886 are: 1, 2, 3583, 7166, 17921, 35842, 64210943, 128421886.

If you add them up, you will get the total of 128,421,950. Now subtract 128,421,886 to get 64,275,458


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