If a matrix has 28 elements, what are the possible orders it can have?

Question

$\begin{array}{1 1}(14,2),(2,14),(4,7),(7,4) \\ (1,28),(28,1),(14,2),(2,14),(4,7)\\ (1,28),(28,1),(14,2),(2,14),(4,7),(7,4) \\ All \;the\;above \end{array}$