Q: What is the sum of all factors of the number 640,297 excluding 640,297?

 A: 149,975

Why is 149,975 the sum of all factors of 640,297, excluding 640,297?

The factors of the number 640,297 are: 1, 7, 23, 41, 97, 161, 287, 679, 943, 2231, 3977, 6601, 15617, 27839, 91471, 640297.

If you add them up, you will get the total of 640,446. Now subtract 640,297 to get 149,975


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