Q: What is the sum of all factors of the number 15,040,020 excluding 15,040,020?

 A: 30,118,380

Why is 30,118,380 the sum of all factors of 15,040,020, excluding 15,040,020?

The factors of the number 15,040,020 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 79, 95, 114, 158, 167, 190, 228, 237, 285, 316, 334, 380, 395, 474, 501, 570, 668, 790, 835, 948, 1002, 1140, 1185, 1501, 1580, 1670, 2004, 2370, 2505, 3002, 3173, 3340, 4503, 4740, 5010, 6004, 6346, 7505, 9006, 9519, 10020, 12692, 13193, 15010, 15865, 18012, 19038, 22515, 26386, 30020, 31730, 38076, 39579, 45030, 47595, 52772, 63460, 65965, 79158, 90060, 95190, 131930, 158316, 190380, 197895, 250667, 263860, 395790, 501334, 752001, 791580, 1002668, 1253335, 1504002, 2506670, 3008004, 3760005, 5013340, 7520010, 15040020.

If you add them up, you will get the total of 15,040,050. Now subtract 15,040,020 to get 30,118,380


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