What are the positive pair factors of 162?

162 = 2 x 3 x 3 x 3 x 3

We can obtain the pairs of factors from the above prime factorization.
For example, 162 = 2 x 81, so, 2 and 81 are a pair.

Similarly,
162= 1 x 162
162 = 2 x 81
162 = 3 x 54
162 = 6 x 27
162= 9 x 18

Therefore, the positive pair factors of 162 are (1,162), (2,81), (3,54), (6,27), (9,18).