login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A110442 Least colossally abundant number c with sigma(c)/c >= n. 1
6, 120, 55440, 367567200, 288807105787200, 1970992304700453905270400, 46015447651610234928592313897306120347488000, 20945137389024582113645213620899991935836129981347124754955196200225728000 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

COMMENTS

See A110443 for the indices of these numbers in A004490. A073751 contains a program for quickly computing colossally abundant numbers.

CROSSREFS

Cf. A004490 (colossally abundant numbers), A023199 (least number k such that sigma(k)/k >= n).

Sequence in context: A023199 A007539 A040996 * A137149 A053710 A126244

Adjacent sequences:  A110439 A110440 A110441 * A110443 A110444 A110445

KEYWORD

nonn

AUTHOR

T. D. Noe (noe(AT)sspectra.com), Jul 20 2005

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 17 21:13 EST 2012. Contains 206085 sequences.