Q: What is the sum of all factors of the number 621,120,668 excluding 621,120,668?

 A: 643,303,948

Why is 643,303,948 the sum of all factors of 621,120,668, excluding 621,120,668?

The factors of the number 621,120,668 are: 1, 2, 4, 7, 14, 28, 49, 98, 196, 3168983, 6337966, 12675932, 22182881, 44365762, 88731524, 155280167, 310560334, 621120668.

If you add them up, you will get the total of 621,121,311. Now subtract 621,120,668 to get 643,303,948


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