Q: What is the sum of all factors of the number 28,280 excluding 28,280?

 A: 45,160

Why is 45,160 the sum of all factors of 28,280, excluding 28,280?

The factors of the number 28,280 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 14140, 28280.

If you add them up, you will get the total of 28,325. Now subtract 28,280 to get 45,160


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