1481554114
domain: N
Appears in sequences
- a(n) = sigma_8(n), the sum of the 8th powers of the divisors of n.at n=13A013956
- Sum of eighth powers of unitary divisors.at n=13A034682
- E.g.f. Sum_{d|M} (exp(d*x)-1)/d, M=14.at n=9A141013
- Sum of the 8th powers of the squarefree divisors of n.at n=13A351271
- Sum of the 8th powers of the squarefree divisors of n.at n=27A351271
- a(n) = n^8 * Product_{p|n, p prime} (1 + 1/p^8).at n=13A351303