Q: What is the sum of all factors of the number 128,740 excluding 128,740?

 A: 149,972

Why is 149,972 the sum of all factors of 128,740, excluding 128,740?

The factors of the number 128,740 are: 1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 628, 785, 820, 1570, 3140, 6437, 12874, 25748, 32185, 64370, 128740.

If you add them up, you will get the total of 128,889. Now subtract 128,740 to get 149,972


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