A218418 Numbers k for which sigma(k)/k - 8/9 is an integer.

252, 4464, 73152, 7448760, 41713056, 48117888, 94112928, 301953024, 975576960, 1773584640, 10759746816, 46351678464, 77308821504, 103448378880, 196718837760, 233400061440, 409698051840, 939767546880

Offset: 1

Author

Zdenek Cervenka, Oct 28 2012

Keywords

• nonn

Comments

a(14) > 10^11. - Donovan Johnson, Nov 01 2012

a(19) > 10^12. - Giovanni Resta, Nov 04 2012

Crossrefs

Cf. A218414, A218430, A160320, A218415, A218416, A160321, A218417.

Extensions

a(5)-a(13) from Donovan Johnson, Nov 01 2012

a(14)-a(18) from Giovanni Resta, Nov 04 2012