7 and 23 are one pair.
The factors of 30 are 1,2,3,5,6,10,15,30
The factors of 21 that add up to 8 are 1 and 7.
15 and 4 are the factors of 120 that add up to 19.
115
The four factors of 33 add up to 48.
The four factors of 33 add up to 48.
How about 3 and 6
It wasn't me, but I would have come up with 33. The four factors of 33 add up to 48.
335
The only number between 30 and 40 with distinct prime factors which add up to 12 is 35.
Add them up. The prime factors of 30 are 2, 3 and 5. You can handle the rest.
-156
584
13 & 17
497
-43