Q: What is the sum of all factors of the number 40,140 excluding 40,140?

 A: 82,164

Why is 82,164 the sum of all factors of 40,140, excluding 40,140?

The factors of the number 40,140 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 223, 446, 669, 892, 1115, 1338, 2007, 2230, 2676, 3345, 4014, 4460, 6690, 8028, 10035, 13380, 20070, 40140.

If you add them up, you will get the total of 40,222. Now subtract 40,140 to get 82,164


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