What times what equals 160

If you don't mind fractions and decimals, then there are

an infinite number of pairs that multiply to result in 160.

If you want to stick to only whole numbers, then these are

the possibilities:

1 x 160

2 x 80

4 x 40

5 x 32

8 x 20

10 x 16.

Also, the same list with both numbers negative.