81002220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3581}}^1$

素因数の和:3635

約数の個数: 96

約数和(自身を含む): 252745920

約数和(自身を除く): 171743700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 29, 30, 39, 52, 58, 60, 65, 78, 87, 116, 130, 145, 156, 174, 195, 260, 290, 348, 377, 390, 435, 580, 754, 780, 870, 1131, 1508, 1740, 1885, 2262, 3581, 3770, 4524, 5655, 7162, 7540, 10743, 11310, 14324, 17905, 21486, 22620, 35810, 42972, 46553, 53715, 71620, 93106, 103849, 107430, 139659, 186212, 207698, 214860, 232765, 279318, 311547, 415396, 465530, 519245, 558636, 623094, 698295, 931060, 1038490, 1246188, 1350037, 1396590, 1557735, 2076980, 2700074, 2793180, 3115470, 4050111, 5400148, 6230940, 6750185, 8100222, 13500370, 16200444, 20250555, 27000740, 40501110, 81002220]

約数ペア:

[(1, 81002220), (2, 40501110), (3, 27000740), (4, 20250555), (5, 16200444), (6, 13500370), (10, 8100222), (12, 6750185), (13, 6230940), (15, 5400148), (20, 4050111), (26, 3115470), (29, 2793180), (30, 2700074), (39, 2076980), (52, 1557735), (58, 1396590), (60, 1350037), (65, 1246188), (78, 1038490), (87, 931060), (116, 698295), (130, 623094), (145, 558636), (156, 519245), (174, 465530), (195, 415396), (260, 311547), (290, 279318), (348, 232765), (377, 214860), (390, 207698), (435, 186212), (580, 139659), (754, 107430), (780, 103849), (870, 93106), (1131, 71620), (1508, 53715), (1740, 46553), (1885, 42972), (2262, 35810), (3581, 22620), (3770, 21486), (4524, 17905), (5655, 14324), (7162, 11310), (7540, 10743)]