Why is 1,820 the sum of all factors of 684, including 684?
The factors of the number 684 are: 1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684.
If you add them up, you will get the total of 1,820.
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