469028

Appears in sequences

• Smaller of an amicable pair: (a,b) such that sigma(a) = sigma(b) = a+b, a < b.at n=27A002025
• Smaller of amicable pair (x, y) as they are listed in A259933.at n=27A260086
• Twin amicable numbers (m,n) where there is not any part of another amicable pair between m and n.at n=24A273259
• Amicable pairs with the property that the number of divisors of the smaller member is smaller than the number of divisors of the larger member.at n=0A328255
• Lesser of recursive amicable numbers pair: numbers m < k such that m = s(k) and k = s(m), where s(k) = A333926(k) - k is the sum of proper recursive divisors of k.at n=30A333929
• Lesser of amicable pair a < b such that the ratio of their number of divisors d(b)/d(a) sets a new record.at n=2A339682