The factors of 21 that add up to 8 are 1 and 7.
factors of 30 that add to 17 are 2 and 15
The factors of 9 are 1, 3 and 9.
15 and 4 are the factors of 120 that add up to 19.
115
212
170
100 and 100 can add to 200 50, 50, 50, and 50 can add to 200 8 25s can add to 200 20 10s can add to 200
The factors of 21 that add up to 8 are 1 and 7.
180: it has 18 factors.
20100
None. Factors don't add, they multiply.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
-1005
167
268