Q: What is the sum of all factors of the number 621,980 excluding 621,980?
A: 699,508
The factors of the number 621,980 are: 1, 2, 4, 5, 10, 20, 137, 227, 274, 454, 548, 685, 908, 1135, 1370, 2270, 2740, 4540, 31099, 62198, 124396, 155495, 310990, 621980.
If you add them up, you will get the total of 622,679. Now subtract 621,980 to get 699,508