A144770 Numbers with sum of divisors = 2880.

840, 1128, 1218, 1240, 1242, 1254, 1288, 1330, 1434, 1485, 1528, 1738, 1786, 1798, 1869, 1917, 1947, 2001, 2065, 2157, 2185, 2233, 2261, 2395, 2513, 2629, 2759, 2773, 2879

Offset

1,1

Links

Table of n, a(n) for n=1..29.

Mathematica

k=2880; lst={}; Do[d=DivisorSigma[1, n]; If[d==k, AppendTo[lst, n]], {n, 7!}]; lst

Prog

(PARI) is(n)=sigma(n)==2880 \\ Charles R Greathouse IV, Jun 19 2016

Crossrefs

Sequence in context: A095119 A175742 A102793 * A068546 A033269 A272595

Adjacent sequences: A144767 A144768 A144769 * A144771 A144772 A144773

Keyword

nonn,fini,full

Author

Vladimir Joseph Stephan Orlovsky, Sep 20 2008

Status

approved