Q: What is the sum of all factors of the number 257,408 excluding 257,408?

 A: 255,652

Why is 255,652 the sum of all factors of 257,408, excluding 257,408?

The factors of the number 257,408 are: 1, 2, 4, 8, 16, 32, 64, 128, 2011, 4022, 8044, 16088, 32176, 64352, 128704, 257408.

If you add them up, you will get the total of 257,663. Now subtract 257,408 to get 255,652


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