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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; text; 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.

LINKS

Table of n, a(n) for n=2..9.

CROSSREFS

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

Sequence in context: A023199 A007539 A040996 * A137149 A317888 A053710

Adjacent sequences:  A110439 A110440 A110441 * A110443 A110444 A110445

KEYWORD

nonn

AUTHOR

T. D. Noe, Jul 20 2005

STATUS

approved

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Last modified January 23 02:40 EST 2019. Contains 319365 sequences. (Running on oeis4.)