Q: What is the sum of all factors of the number 421,554,020 excluding 421,554,020?

 A: 464,102,164

Why is 464,102,164 the sum of all factors of 421,554,020, excluding 421,554,020?

The factors of the number 421,554,020 are: 1, 2, 4, 5, 10, 20, 3793, 5557, 7586, 11114, 15172, 18965, 22228, 27785, 37930, 55570, 75860, 111140, 21077701, 42155402, 84310804, 105388505, 210777010, 421554020.

If you add them up, you will get the total of 421,554,484. Now subtract 421,554,020 to get 464,102,164


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