Q: What is the sum of all factors of the number 249,090 excluding 249,090?

A: 409,278

Why is 409,278 the sum of all factors of 249,090, excluding 249,090?

The factors of the number 249,090 are: 1, 2, 3, 5, 6, 10, 15, 19, 23, 30, 38, 46, 57, 69, 95, 114, 115, 138, 190, 230, 285, 345, 361, 437, 570, 690, 722, 874, 1083, 1311, 1805, 2166, 2185, 2622, 3610, 4370, 5415, 6555, 8303, 10830, 13110, 16606, 24909, 41515, 49818, 83030, 124545, 249090.

If you add them up, you will get the total of 249,499. Now subtract 249,090 to get 409,278