485554
domain: N
Appears in sequences
- sigma_4(n): sum of 4th powers of divisors of n.at n=25A001159
- Sum of fourth powers of unitary divisors.at n=25A034678
- Dirichlet inverse of sigma_4 function (A001159).at n=25A053826
- a(n) = n^4*Product_{distinct primes p dividing n} (1+1/p^4).at n=25A065960
- Sum of n-th powers of divisors of 26.at n=4A241030
- Sum of the 4th powers of the squarefree divisors of n.at n=25A351267