The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
268
715
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
When the "factors" of a number are listed, the list is usually restricted to positive factors. Then there would be no answer to the question, because no group of positive numbers can add up to make zero.
-10 and +10.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
1510
115
The 8 factors of 56 are 1, 2, 4, 7, 8, 14, 28, and 56. 2 and 8 add up to 10. Also, 1, 2, and 7 add up to 10.
268
-10 & -18
35
-46
12610
-589
34