560 is one such.
The factor pairs of 10 are 1*10, 2*5
Factor pairs are just the factors of a number listed in a different way. The factors of 20 are 1, 2, 4, 5, 10, 20 The factor pairs of 20 are (20,1)(10,2)(5,4)
There are 10 factor pairs for 5,000:5000,12500,21250,41000,5625,8500,10250,20200,25125,40100,50
(10,1)(5,2)
its a factor with two pairs of the same number
It works by multiplying and diving for example: a factor of 10 would be 1,2,5 and the number itself 10
These are the 16 factor pairs for the number 1,080:1080,1540,2360,3270,4216,5180,6135,8120,9108,1090,1272,1560,1854,2045,2440,2736,30
10 has two factor pairs:10 = 1 x 1010 = 2 x 5
The factor pairs are all the factors of the number, just listed in pairs.
A square number has an odd number of factors, but a number with an odd number of factor pairs is nothing special.
5 and 10, among many others.