Q: What is the sum of all factors of the number 261,121,655 excluding 261,121,655?

A: 80,093,545

Why is 80,093,545 the sum of all factors of 261,121,655, excluding 261,121,655?

The factors of the number 261,121,655 are: 1, 5, 19, 29, 95, 145, 551, 2755, 94781, 473905, 1800839, 2748649, 9004195, 13743245, 52224331, 261121655.

If you add them up, you will get the total of 261,121,735. Now subtract 261,121,655 to get 80,093,545

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