20182920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2129}}^1$

素因数の和:2222

約数の個数: 64

約数和(自身を含む): 61344000

約数和(自身を除く): 41161080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2129, 2370, 3160, 4258, 4740, 6387, 8516, 9480, 10645, 12774, 17032, 21290, 25548, 31935, 42580, 51096, 63870, 85160, 127740, 168191, 255480, 336382, 504573, 672764, 840955, 1009146, 1345528, 1681910, 2018292, 2522865, 3363820, 4036584, 5045730, 6727640, 10091460, 20182920]

約数ペア:

[(1, 20182920), (2, 10091460), (3, 6727640), (4, 5045730), (5, 4036584), (6, 3363820), (8, 2522865), (10, 2018292), (12, 1681910), (15, 1345528), (20, 1009146), (24, 840955), (30, 672764), (40, 504573), (60, 336382), (79, 255480), (120, 168191), (158, 127740), (237, 85160), (316, 63870), (395, 51096), (474, 42580), (632, 31935), (790, 25548), (948, 21290), (1185, 17032), (1580, 12774), (1896, 10645), (2129, 9480), (2370, 8516), (3160, 6387), (4258, 4740)]