2019900490

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1\times {\mathrm{337}}^1$

素因数の和:703

約数の個数: 64

約数和(自身を含む): 3816274176

約数和(自身を除く): 1796373686

約数列:

[1, 2, 5, 10, 43, 53, 86, 106, 215, 263, 265, 337, 430, 526, 530, 674, 1315, 1685, 2279, 2630, 3370, 4558, 11309, 11395, 13939, 14491, 17861, 22618, 22790, 27878, 28982, 35722, 56545, 69695, 72455, 88631, 89305, 113090, 139390, 144910, 177262, 178610, 443155, 599377, 768023, 886310, 1198754, 1536046, 2996885, 3811133, 3840115, 4697443, 5993770, 7622266, 7680230, 9394886, 19055665, 23487215, 38111330, 46974430, 201990049, 403980098, 1009950245, 2019900490]

約数ペア:

[(1, 2019900490), (2, 1009950245), (5, 403980098), (10, 201990049), (43, 46974430), (53, 38111330), (86, 23487215), (106, 19055665), (215, 9394886), (263, 7680230), (265, 7622266), (337, 5993770), (430, 4697443), (526, 3840115), (530, 3811133), (674, 2996885), (1315, 1536046), (1685, 1198754), (2279, 886310), (2630, 768023), (3370, 599377), (4558, 443155), (11309, 178610), (11395, 177262), (13939, 144910), (14491, 139390), (17861, 113090), (22618, 89305), (22790, 88631), (27878, 72455), (28982, 69695), (35722, 56545)]