282720

Appears in sequences

• Balanced refactorable numbers.at n=19A078543
• Numbers n such that sigma(n) = 14*phi(n) (where sigma=A000203, phi=A000010).at n=15A171259
• Three-column table read by rows: Triples that have the same value of phi, sigma, and tau.at n=27A322679
• Three-column table read by rows: Primitive distinct triples that have the same value of phi, sigma, and tau.at n=27A322689