A074283 Sum of the aliquot divisors of n-th Fibonacci number.

0, 0, 1, 1, 1, 7, 1, 11, 20, 17, 1, 259, 1, 43, 506, 549, 1, 2816, 151, 5331, 6778, 289, 1, 110880, 18037, 755, 124342, 155949, 1, 1310680, 2975, 1213179, 1821962, 5169, 2697343, 33280848, 506383, 1416031, 32030858, 106878261, 62159, 295708904, 1

Offset: 1

Author

Shyam Sunder Gupta, Sep 21 2002

Keywords

• nonn

Examples

			a(6) = 7 because the sum of the aliquot divisors of the 6th Fibonacci number (i.e. 8) is 1 + 2 + 4 = 7.
		

Links

• Amiram Eldar, Table of n, a(n) for n = 1..1408 (terms 1..250 from Paolo P. Lava)

Crossrefs

Cf. A000045, A001065, A063477. - Omar E. Pol, Dec 20 2008

Programs

Mathematica

Table[Total[Most[Divisors[n]]],{n,Fibonacci[Range[50]]}] (* Harvey P. Dale, Dec 12 2013 *)

Formula

a(n) = A001065(A000045(n)). - Omar E. Pol, Dec 20 2008

a(n) = A063477(n) - A000045(n). - Amiram Eldar, Aug 27 2020