Why is 890 the sum of all factors of 1,378, excluding 1,378?
The factors of the number 1,378 are: 1, 2, 13, 26, 53, 106, 689, 1378.
If you add them up, you will get the total of 2,268. Now subtract 1,378 to get 890
More numbers for you to try...
Try the
factor calculator