title: Finding numbers that have specific roles
body: <p>I'm trying to find if a number is ordinary or not using inputs. A positive integer is ordinary if it has at least two pairs of positive integer factors such that the difference of one pair equals the sum of the other pair.</p>
  
  <p>For example, 6 is ordinary since 6×1=6,2×3=6,6−1=2+3; and 24 is also ordinary since 12−2=6+4.
  I'm stuck on how to make a code where it "grabs" a specific match of the factors of a number.</p>
  
  <p>Thanks :)</p>