356408

Appears in sequences

• Smaller of an amicable pair: (a,b) such that sigma(a) = sigma(b) = a+b, a < b.at n=25A002025
• Smaller member of an infinitary amicable pair.at n=32A126169
• Smaller members of regular amicable pairs.at n=17A215491
• Untouchable amicable numbers: amicable pairs which cannot be reached by any aliquot sequence starting from a number that does not belong to this pair.at n=0A238382
• Number of length n+5 0..7 arrays with every six consecutive terms having five times some element equal to the sum of the remaining five.at n=11A249496
• Smaller of amicable pair (x, y) as they are listed in A259933.at n=25A260086
• Amicable pairs of even numbers.at n=40A262622
• Even amicable numbers.at n=37A262624
• List of pairs of amicable numbers (m,n) where the sum of the pair is divisible by 10.at n=26A291422
• Smaller of bi-unitary amicable pair.at n=34A292980
• Lesser of tri-unitary amicable numbers pair: numbers (m, n) such that tsigma(m) = tsigma(n) = m + n, where tsigma(n) is the sum of the tri-unitary divisors of n (A324706).at n=23A324708
• Amicable pairs with the property that the number of divisors of the smaller member is greater than the number of divisors of the larger member.at n=30A328063
• Amicable pairs with the property that the number of divisors of the smaller member is twice the number of divisors of the larger member.at n=22A328065