269072

Appears in sequences

• Nonprimes n such that the sum of proper divisors of n and the product of proper divisors of n are both perfect cubes.at n=26A244429
• Composite numbers whose sum of proper divisors is a power of 2.at n=25A279731
• G.f.: Sum_{k>=0} x^(k^2) * Product_{j=1..k} ((1 + x^j)/(1 - x^j))^2.at n=34A376854
• Nonprime numbers whose sum of proper divisors is a power of 4.at n=16A383872