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A198343
Divisors of 196560.
2
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 54, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 108, 112, 117, 120, 126, 130, 135, 140, 144, 156, 168, 180, 182, 189, 195, 208, 210, 216, 234, 240, 252, 260, 270, 273, 280, 312, 315, 336, 351, 360, 364, 378, 390, 420, 432, 455
OFFSET
1,2
COMMENTS
196560 is the kissing number of the Leech lattice (cf. A008408). It is a famous number in the "Moonshine" investigations.
LINKS
Eiichi Bannai and N. J. A. Sloane, Uniqueness of certain spherical codes, Canad. J. Math. 33 (1981), no. 2, 437-449.
J. H. Conway and S. P. Norton, Monstrous Moonshine, Bull. Lond. Math. Soc. 11 (1979), no. 3, 308-339.
A. M. Odlyzko and N. J. A. Sloane, New bounds on the number of unit spheres that can touch a unit sphere in n dimensions, J. Combin. Theory Ser. A 26 (1979), no. 2, 210-214.
J. G. Thompson, Some numerology between the Fischer-Griess Monster and the elliptic modular function, Bull. London Math. Soc., 11 (1979), no. 3, 352-353.
MATHEMATICA
Divisors[196560] (* Paolo Xausa, Jul 01 2024 *)
PROG
(PARI) divisors(196560) \\ Charles R Greathouse IV, Feb 21 2013
CROSSREFS
Cf. A008408.
Sequence in context: A351467 A074402 A233264 * A342382 A094270 A125705
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Oct 23 2011, following a suggestion from Mark A. Thomas.
STATUS
approved