Q: What is the sum of all factors of the number 12,689,645 excluding 12,689,645?

 A: 2,578,315

Why is 2,578,315 the sum of all factors of 12,689,645, excluding 12,689,645?

The factors of the number 12,689,645 are: 1, 5, 401, 2005, 6329, 31645, 2537929, 12689645.

If you add them up, you will get the total of 12,689,647. Now subtract 12,689,645 to get 2,578,315


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