20511150

Appears in sequences

• sigma_5(n), the sum of the 5th powers of the divisors of n.at n=28A001160
• a(n) = n^5 + 1.at n=30A002561
• Numerator of sum of -5th powers of divisors of n.at n=28A017673
• Sum of fifth powers of unitary divisors.at n=28A034679
• Sum of 5th powers of odd divisors of n.at n=28A051002
• Sum of 5th powers of the divisors of odd numbers: a(n) = sigma_5(2n-1).at n=14A081864
• a(n) = Sum_{0<d|n, n/d odd} d^5.at n=28A096960
• a(n) = Sum_{d|n} (-1)^(n/d+1)*d^5.at n=28A284926
• a(n) = Sum_{d|n} (-1)^(d-1)*d^5.at n=28A321544
• a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^5.at n=28A321561
• a(n) = Sum_{d|n, d==1 mod 4} d^5 - Sum_{d|n, d==3 mod 4} d^5.at n=28A321821
• a(n) = Sum_{d|n, n/d==1 mod 4} d^5 - Sum_{d|n, n/d==3 mod 4} d^5.at n=28A321829
• Sum of the 5th powers of the squarefree divisors of n.at n=28A351268
• a(n) = n^5 * Product_{p|n, p prime} (1 + 1/p^5).at n=28A351300