Divisor Sum of 243,760

Example of Sigma Function of Integer

 * $\sigma \left({243 \, 760}\right) = 620 \, 496$

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

Proof
We have that:
 * $243 \, 760 = 2^4 \times 5 \times 11 \times 277$

Hence: