20180123860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2676409}}^1$

素因数の和:2676460

約数の個数: 48

約数和(自身を含む): 47211872400

約数和(自身を除く): 27031748540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 2676409, 5352818, 10705636, 13382045, 26764090, 34793317, 53528180, 69586634, 77615861, 139173268, 155231722, 173966585, 310463444, 347933170, 388079305, 695866340, 776158610, 1009006193, 1552317220, 2018012386, 4036024772, 5045030965, 10090061930, 20180123860]

約数ペア:

[(1, 20180123860), (2, 10090061930), (4, 5045030965), (5, 4036024772), (10, 2018012386), (13, 1552317220), (20, 1009006193), (26, 776158610), (29, 695866340), (52, 388079305), (58, 347933170), (65, 310463444), (116, 173966585), (130, 155231722), (145, 139173268), (260, 77615861), (290, 69586634), (377, 53528180), (580, 34793317), (754, 26764090), (1508, 13382045), (1885, 10705636), (3770, 5352818), (7540, 2676409)]