Q: What is the sum of all factors of the number 30,540 excluding 30,540?

 A: 55,140

Why is 55,140 the sum of all factors of 30,540, excluding 30,540?

The factors of the number 30,540 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 509, 1018, 1527, 2036, 2545, 3054, 5090, 6108, 7635, 10180, 15270, 30540.

If you add them up, you will get the total of 30,595. Now subtract 30,540 to get 55,140


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