Divisor Sum of Non-Square Semiprime/Examples/58

Example of Sigma Function of Non-Square Semiprime

 * $\sigma \left({58}\right) = 90$

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

Proof
We have that:
 * $58 = 2 \times 29$

and so by definition is a semiprime whose prime factors are distinct.

Hence: