167
The factors of 2040 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, and 2040.The prime factors of 2040 are: 2, 3, 5, and 17.
The factors of 8 are 1, 2, 4, and 8. The factors that add up to 10 are 2 and 8.
212
1012
1510
47
15 and 4 are the factors of 120 that add up to 19.
4 and 12
81 and 4
9
5