Divisor Sum of 45,045

Example of Sigma Function of Integer

 * $\map \sigma {45 \, 045} = 104 \, 832$

where $\sigma$ denotes the $\sigma$ function.

Proof
We have that:
 * $45 \, 045 = 3^2 \times 5 \times 7 \times 11 \times 13$

Hence: