Q: What is the sum of all factors of the number 311,980 excluding 311,980?
A: 378,500
The factors of the number 311,980 are: 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 821, 1642, 3284, 4105, 8210, 15599, 16420, 31198, 62396, 77995, 155990, 311980.
If you add them up, you will get the total of 312,358. Now subtract 311,980 to get 378,500