20151111920

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{584429}}^1$

素因数の和:584873

約数の個数: 40

約数和(自身を含む): 46960119360

約数和(自身を除く): 26809007440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 862, 1724, 2155, 3448, 4310, 6896, 8620, 17240, 34480, 584429, 1168858, 2337716, 2922145, 4675432, 5844290, 9350864, 11688580, 23377160, 46754320, 251888899, 503777798, 1007555596, 1259444495, 2015111192, 2518888990, 4030222384, 5037777980, 10075555960, 20151111920]

約数ペア:

[(1, 20151111920), (2, 10075555960), (4, 5037777980), (5, 4030222384), (8, 2518888990), (10, 2015111192), (16, 1259444495), (20, 1007555596), (40, 503777798), (80, 251888899), (431, 46754320), (862, 23377160), (1724, 11688580), (2155, 9350864), (3448, 5844290), (4310, 4675432), (6896, 2922145), (8620, 2337716), (17240, 1168858), (34480, 584429)]