Q: What is the sum of all factors of the number 217,420 excluding 217,420?

 A: 304,724

Why is 304,724 the sum of all factors of 217,420, excluding 217,420?

The factors of the number 217,420 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1553, 3106, 6212, 7765, 10871, 15530, 21742, 31060, 43484, 54355, 108710, 217420.

If you add them up, you will get the total of 217,724. Now subtract 217,420 to get 304,724


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