4246130

Appears in sequences

• Amicable pairs {x, y} such that y is the sum of the divisors of x that are not divided by every prime factor of x and vice versa.at n=20A307986
• 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=4A328255
• Smaller member of a nonexponential amicable pair: numbers (k, m) such that nesigma(k) = m and nesigma(m) = k, where nesigma(k) is the sum of the nonexponential divisors of k (A160135).at n=10A348602