Q: What is the sum of all factors of the number 279,860 excluding 279,860?
A: 392,140
The factors of the number 279,860 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1999, 3998, 7996, 9995, 13993, 19990, 27986, 39980, 55972, 69965, 139930, 279860.
If you add them up, you will get the total of 280,252. Now subtract 279,860 to get 392,140