Q: What is the sum of all factors of the number 28,543,720 including 28,543,720?

Why is 64,501,920 the sum of all factors of 28,543,720, including 28,543,720?

The factors of the number 28,543,720 are: 1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 2843, 5020, 5686, 10040, 11372, 14215, 22744, 28430, 56860, 113720, 713593, 1427186, 2854372, 3567965, 5708744, 7135930, 14271860, 28543720.

If you add them up, you will get the total of 64,501,920.

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