Q: What is the sum of all factors of the number 40,290 excluding 40,290?

 A: 63,390

Why is 63,390 the sum of all factors of 40,290, excluding 40,290?

The factors of the number 40,290 are: 1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 79, 85, 102, 158, 170, 237, 255, 395, 474, 510, 790, 1185, 1343, 2370, 2686, 4029, 6715, 8058, 13430, 20145, 40290.

If you add them up, you will get the total of 40,353. Now subtract 40,290 to get 63,390


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