Q: What is the sum of all factors of the number 81,777,436 excluding 81,777,436?

 A: 72,341,676

Why is 72,341,676 the sum of all factors of 81,777,436, excluding 81,777,436?

The factors of the number 81,777,436 are: 1, 2, 4, 13, 26, 52, 1572643, 3145286, 6290572, 20444359, 40888718, 81777436.

If you add them up, you will get the total of 81,777,508. Now subtract 81,777,436 to get 72,341,676


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