\begin{definition}[Definition:Primitive Abundant Number/Sequence]
The sequence of '''primitive abundant numbers''' begins:
:$20, 70, 88, 104, 272, 304, 368, 464, 550, 572, 650, 748, 836, 945, 1184, 1312, \ldots$
{{OEIS|A071395}}
\end{definition}