Q: What is the sum of all factors of the number 257,660 excluding 257,660?

 A: 325,636

Why is 325,636 the sum of all factors of 257,660, excluding 257,660?

The factors of the number 257,660 are: 1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 991, 1982, 3964, 4955, 9910, 12883, 19820, 25766, 51532, 64415, 128830, 257660.

If you add them up, you will get the total of 257,985. Now subtract 257,660 to get 325,636


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