Q: What is the sum of all factors of the number 256 including 256?

 A: 511

Why is 511 the sum of all factors of 256, including 256?

The factors of the number 256 are: 1, 2, 4, 8, 16, 32, 64, 128, 256.

If you add them up, you will get the total of 511.


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