80802000

Appears in sequences

• Sigma-powerful numbers: powerful numbers n such that sigma(n) is also powerful. An incomplete version of A337045.at n=9A180090
• Indecomposable sigma-powerful numbers: powerful numbers k such that sigma(k) is also powerful, but restricted to terms that are not the product of 2 terms > 1 of A337044.at n=23A337045