Q: What is the sum of all factors of the number 256,398 excluding 256,398?
A: 261,618
The factors of the number 256,398 are: 1, 2, 3, 6, 151, 283, 302, 453, 566, 849, 906, 1698, 42733, 85466, 128199, 256398.
If you add them up, you will get the total of 256,659. Now subtract 256,398 to get 261,618