Q: What is the sum of all factors of the number 421,140,220 excluding 421,140,220?

 A: 471,844,964

Why is 471,844,964 the sum of all factors of 421,140,220, excluding 421,140,220?

The factors of the number 421,140,220 are: 1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 204437, 408874, 817748, 1022185, 2044370, 4088740, 21057011, 42114022, 84228044, 105285055, 210570110, 421140220.

If you add them up, you will get the total of 421,140,691. Now subtract 421,140,220 to get 471,844,964


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