Q: What is the sum of all factors of the number 155,112,320 excluding 155,112,320?

 A: 252,681,640

Why is 252,681,640 the sum of all factors of 155,112,320, excluding 155,112,320?

The factors of the number 155,112,320 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 121, 128, 160, 176, 220, 242, 320, 352, 440, 484, 605, 640, 704, 880, 968, 1210, 1408, 1760, 1936, 2003, 2420, 3520, 3872, 4006, 4840, 7040, 7744, 8012, 9680, 10015, 15488, 16024, 19360, 20030, 22033, 32048, 38720, 40060, 44066, 64096, 77440, 80120, 88132, 110165, 128192, 160240, 176264, 220330, 242363, 256384, 320480, 352528, 440660, 484726, 640960, 705056, 881320, 969452, 1211815, 1281920, 1410112, 1762640, 1938904, 2423630, 2820224, 3525280, 3877808, 4847260, 7050560, 7755616, 9694520, 14101120, 15511232, 19389040, 31022464, 38778080, 77556160, 155112320.

If you add them up, you will get the total of 155,112,572. Now subtract 155,112,320 to get 252,681,640


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