Q: What is the sum of all factors of the number 128,040 including 128,040?

A: 423,360

Why is 423,360 the sum of all factors of 128,040, including 128,040?

The factors of the number 128,040 are: 1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 97, 110, 120, 132, 165, 194, 220, 264, 291, 330, 388, 440, 485, 582, 660, 776, 970, 1067, 1164, 1320, 1455, 1940, 2134, 2328, 2910, 3201, 3880, 4268, 5335, 5820, 6402, 8536, 10670, 11640, 12804, 16005, 21340, 25608, 32010, 42680, 64020, 128040.

If you add them up, you will get the total of 423,360.