140335

Appears in sequences

• Odd integers m such that phi(m) | sigma(m).at n=33A015715
• Numbers n such that sigma(n) = 2*phi(n).at n=10A062699
• Numbers k such that sigma(k) = phi(k*bigomega(k)).at n=30A068400
• Numbers n such that sigma(n) = phi(3n).at n=18A074891
• Numbers k such that k, 2*k and 4*k are balanced numbers (A020492).at n=24A076376
• Balanced numbers n such that n mod 12 = 7.at n=2A110599
• Numbers k such that gcd(sigma(k), phi(k)) (A009223) attains record values.at n=35A222711
• Numbers n such that psi(n) = 2*phi(n).at n=42A292390