Q: What is the sum of all factors of the number 77,565,380 excluding 77,565,380?

 A: 85,321,960

Why is 85,321,960 the sum of all factors of 77,565,380, excluding 77,565,380?

The factors of the number 77,565,380 are: 1, 2, 4, 5, 10, 20, 3878269, 7756538, 15513076, 19391345, 38782690, 77565380.

If you add them up, you will get the total of 77,565,465. Now subtract 77,565,380 to get 85,321,960


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