20163960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 66456000

約数和(自身を除く): 46292040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 79, 90, 120, 158, 180, 237, 316, 360, 395, 474, 632, 709, 711, 790, 948, 1185, 1418, 1422, 1580, 1896, 2127, 2370, 2836, 2844, 3160, 3545, 3555, 4254, 4740, 5672, 5688, 6381, 7090, 7110, 8508, 9480, 10635, 12762, 14180, 14220, 17016, 21270, 25524, 28360, 28440, 31905, 42540, 51048, 56011, 63810, 85080, 112022, 127620, 168033, 224044, 255240, 280055, 336066, 448088, 504099, 560110, 672132, 840165, 1008198, 1120220, 1344264, 1680330, 2016396, 2240440, 2520495, 3360660, 4032792, 5040990, 6721320, 10081980, 20163960]

約数ペア:

[(1, 20163960), (2, 10081980), (3, 6721320), (4, 5040990), (5, 4032792), (6, 3360660), (8, 2520495), (9, 2240440), (10, 2016396), (12, 1680330), (15, 1344264), (18, 1120220), (20, 1008198), (24, 840165), (30, 672132), (36, 560110), (40, 504099), (45, 448088), (60, 336066), (72, 280055), (79, 255240), (90, 224044), (120, 168033), (158, 127620), (180, 112022), (237, 85080), (316, 63810), (360, 56011), (395, 51048), (474, 42540), (632, 31905), (709, 28440), (711, 28360), (790, 25524), (948, 21270), (1185, 17016), (1418, 14220), (1422, 14180), (1580, 12762), (1896, 10635), (2127, 9480), (2370, 8508), (2836, 7110), (2844, 7090), (3160, 6381), (3545, 5688), (3555, 5672), (4254, 4740)]