Q: What is the sum of all factors of the number 128,878 excluding 128,878?

 A: 64,442

Why is 64,442 the sum of all factors of 128,878, excluding 128,878?

The factors of the number 128,878 are: 1, 2, 64439, 128878.

If you add them up, you will get the total of 128,942. Now subtract 128,878 to get 64,442


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