Q: What is the sum of all factors of the number 2,163,080 excluding 2,163,080?

Why is 2,991,760 the sum of all factors of 2,163,080, excluding 2,163,080?

The factors of the number 2,163,080 are: 1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 3181, 6362, 12724, 15905, 25448, 31810, 54077, 63620, 108154, 127240, 216308, 270385, 432616, 540770, 1081540, 2163080.

If you add them up, you will get the total of 2,163,082. Now subtract 2,163,080 to get 2,991,760

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