20408977386340

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{443}}^1\times {\mathrm{2339}}^1\times {\mathrm{5441}}^1$

素因数の和:8413

約数の個数: 96

約数和(自身を含む): 43219331326080

約数和(自身を除く): 22810353939740

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 443, 724, 886, 905, 1772, 1810, 2215, 2339, 3620, 4430, 4678, 5441, 8860, 9356, 10882, 11695, 21764, 23390, 27205, 46780, 54410, 80183, 108820, 160366, 320732, 400915, 423359, 801830, 846718, 984821, 1036177, 1603660, 1693436, 1969642, 2072354, 2116795, 2410363, 3939284, 4144708, 4233590, 4820726, 4924105, 5180885, 8467180, 9641452, 9848210, 10361770, 12051815, 12726499, 19696420, 20723540, 24103630, 25452998, 48207260, 50905996, 63632495, 127264990, 187548037, 254529980, 375096074, 436275703, 750192148, 872551406, 937740185, 1745102812, 1875480370, 2181378515, 2303496319, 3750960740, 4362757030, 4606992638, 5637839057, 8725514060, 9213985276, 11275678114, 11517481595, 22551356228, 23034963190, 28189195285, 46069926380, 56378390570, 112756781140, 1020448869317, 2040897738634, 4081795477268, 5102244346585, 10204488693170, 20408977386340]

約数ペア:

[(1, 20408977386340), (2, 10204488693170), (4, 5102244346585), (5, 4081795477268), (10, 2040897738634), (20, 1020448869317), (181, 112756781140), (362, 56378390570), (443, 46069926380), (724, 28189195285), (886, 23034963190), (905, 22551356228), (1772, 11517481595), (1810, 11275678114), (2215, 9213985276), (2339, 8725514060), (3620, 5637839057), (4430, 4606992638), (4678, 4362757030), (5441, 3750960740), (8860, 2303496319), (9356, 2181378515), (10882, 1875480370), (11695, 1745102812), (21764, 937740185), (23390, 872551406), (27205, 750192148), (46780, 436275703), (54410, 375096074), (80183, 254529980), (108820, 187548037), (160366, 127264990), (320732, 63632495), (400915, 50905996), (423359, 48207260), (801830, 25452998), (846718, 24103630), (984821, 20723540), (1036177, 19696420), (1603660, 12726499), (1693436, 12051815), (1969642, 10361770), (2072354, 9848210), (2116795, 9641452), (2410363, 8467180), (3939284, 5180885), (4144708, 4924105), (4233590, 4820726)]