18489090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 47232000

約数和(自身を除く): 28742910

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 163, 190, 199, 285, 326, 398, 489, 570, 597, 815, 978, 995, 1194, 1630, 1990, 2445, 2985, 3097, 3781, 4890, 5970, 6194, 7562, 9291, 11343, 15485, 18582, 18905, 22686, 30970, 32437, 37810, 46455, 56715, 64874, 92910, 97311, 113430, 162185, 194622, 324370, 486555, 616303, 973110, 1232606, 1848909, 3081515, 3697818, 6163030, 9244545, 18489090]

約数ペア:

[(1, 18489090), (2, 9244545), (3, 6163030), (5, 3697818), (6, 3081515), (10, 1848909), (15, 1232606), (19, 973110), (30, 616303), (38, 486555), (57, 324370), (95, 194622), (114, 162185), (163, 113430), (190, 97311), (199, 92910), (285, 64874), (326, 56715), (398, 46455), (489, 37810), (570, 32437), (597, 30970), (815, 22686), (978, 18905), (995, 18582), (1194, 15485), (1630, 11343), (1990, 9291), (2445, 7562), (2985, 6194), (3097, 5970), (3781, 4890)]