Divisor Sum of 31,185

Example of Divisor Sum of Integer

 * $\map {\sigma_1} {31 \, 185} = 69 \, 696$

where $\sigma_1$ denotes the divisor sum function.

Proof
We have that:
 * $31 \, 185 = 3^4 \times 5 \times 7 \times 11$

Hence: