Q: What is the sum of all factors of the number 290,680 excluding 290,680?

A: 434,000

Why is 434,000 the sum of all factors of 290,680, excluding 290,680?

The factors of the number 290,680 are: 1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 169, 172, 215, 260, 338, 344, 430, 520, 559, 676, 845, 860, 1118, 1352, 1690, 1720, 2236, 2795, 3380, 4472, 5590, 6760, 7267, 11180, 14534, 22360, 29068, 36335, 58136, 72670, 145340, 290680.

If you add them up, you will get the total of 291,114. Now subtract 290,680 to get 434,000