Q: What is the sum of all factors of the number 122,520 excluding 122,520?

 A: 245,400

Why is 245,400 the sum of all factors of 122,520, excluding 122,520?

The factors of the number 122,520 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1021, 2042, 3063, 4084, 5105, 6126, 8168, 10210, 12252, 15315, 20420, 24504, 30630, 40840, 61260, 122520.

If you add them up, you will get the total of 122,765. Now subtract 122,520 to get 245,400


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