Q: What is the sum of all factors of the number 665,217,160 excluding 665,217,160?

 A: 831,521,540

Why is 831,521,540 the sum of all factors of 665,217,160, excluding 665,217,160?

The factors of the number 665,217,160 are: 1, 2, 4, 5, 8, 10, 20, 40, 16630429, 33260858, 66521716, 83152145, 133043432, 166304290, 332608580, 665217160.

If you add them up, you will get the total of 665,217,991. Now subtract 665,217,160 to get 831,521,540


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