Q: What is the sum of all factors of the number 428,008 excluding 428,008?

 A: 489,272

Why is 489,272 the sum of all factors of 428,008, excluding 428,008?

The factors of the number 428,008 are: 1, 2, 4, 7, 8, 14, 28, 56, 7643, 15286, 30572, 53501, 61144, 107002, 214004, 428008.

If you add them up, you will get the total of 428,497. Now subtract 428,008 to get 489,272


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