1419874

Appears in sequences

• sigma_4(n): sum of 4th powers of divisors of n.at n=33A001159
• Sum of the 4th powers of the divisors of n is divisible by n.at n=33A046764
• Dirichlet inverse of sigma_4 function (A001159).at n=33A053826
• Numbers m such that DivisorSigma(8*k-4, m) mod m = 0 holds presumably for all k; that is, (8*k-4)-power-sums of divisors of m are divisible by m for all k.at n=10A066291
• Sum of two powers of 17.at n=16A073213
• a(n) = n^5+n.at n=17A131471
• a(0)=0, a(1)=1, a(2n)=17*a(n), a(2n+1)=a(2n)+1.at n=34A197351
• Sum of the 4th powers of the squarefree divisors of n.at n=33A351267
• a(n) = n*sigma_4(n).at n=17A386749