2100031420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^2$

素因数の和:827

約数の個数: 72

約数和(自身を含む): 4790714544

約数和(自身を除く): 2690683124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 43, 68, 85, 86, 170, 172, 215, 340, 379, 430, 731, 758, 860, 1462, 1516, 1895, 2924, 3655, 3790, 6443, 7310, 7580, 12886, 14620, 16297, 25772, 32215, 32594, 64430, 65188, 81485, 128860, 143641, 162970, 277049, 287282, 325940, 554098, 574564, 718205, 1108196, 1385245, 1436410, 2441897, 2770490, 2872820, 4883794, 5540980, 6176563, 9767588, 12209485, 12353126, 24418970, 24706252, 30882815, 48837940, 61765630, 105001571, 123531260, 210003142, 420006284, 525007855, 1050015710, 2100031420]

約数ペア:

[(1, 2100031420), (2, 1050015710), (4, 525007855), (5, 420006284), (10, 210003142), (17, 123531260), (20, 105001571), (34, 61765630), (43, 48837940), (68, 30882815), (85, 24706252), (86, 24418970), (170, 12353126), (172, 12209485), (215, 9767588), (340, 6176563), (379, 5540980), (430, 4883794), (731, 2872820), (758, 2770490), (860, 2441897), (1462, 1436410), (1516, 1385245), (1895, 1108196), (2924, 718205), (3655, 574564), (3790, 554098), (6443, 325940), (7310, 287282), (7580, 277049), (12886, 162970), (14620, 143641), (16297, 128860), (25772, 81485), (32215, 65188), (32594, 64430)]