Definition:Abundant Number

Definition
Let $n \in \Z_{\ge 0}$ be a positive integer.

Let $\map A n$ denote the abundance of $n$.

Also see

 * Equivalence of Definitions of Abundant Number


 * Definition:Primitive Abundant Number


 * Definition:Deficient Number
 * Definition:Perfect Number


 * Definition:Abundance
 * Definition:Abundancy Index


 * Definition:Superabundant Number