Q: What is the sum of all factors of the number 249,640 excluding 249,640?
A: 319,250
The factors of the number 249,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6241, 12482, 24964, 31205, 49928, 62410, 124820, 249640.
If you add them up, you will get the total of 249,959. Now subtract 249,640 to get 319,250