A198343 Divisors of 196560.

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

N. J. A. Sloane, Table of n, a(n) for n = 1..160

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.

Index entries for sequences related to divisors of numbers

Prog

(PARI) divisors(196560) \\ Charles R Greathouse IV, Feb 21 2013

Crossrefs

Cf. A008408.

Sequence in context: A351467 A074402 A233264 * A342382 A094270 A125705

Adjacent sequences: A198340 A198341 A198342 * A198344 A198345 A198346

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Oct 23 2011, following a suggestion from Mark A. Thomas.

Status

approved