2783013320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1\times {\mathrm{1459}}^1$

素因数の和:2622

約数の個数: 64

約数和(自身を含む): 6417576000

約数和(自身を除く): 3634562680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1109, 1459, 1720, 2218, 2918, 4436, 5545, 5836, 7295, 8872, 11090, 11672, 14590, 22180, 29180, 44360, 47687, 58360, 62737, 95374, 125474, 190748, 238435, 250948, 313685, 381496, 476870, 501896, 627370, 953740, 1254740, 1618031, 1907480, 2509480, 3236062, 6472124, 8090155, 12944248, 16180310, 32360620, 64721240, 69575333, 139150666, 278301332, 347876665, 556602664, 695753330, 1391506660, 2783013320]

約数ペア:

[(1, 2783013320), (2, 1391506660), (4, 695753330), (5, 556602664), (8, 347876665), (10, 278301332), (20, 139150666), (40, 69575333), (43, 64721240), (86, 32360620), (172, 16180310), (215, 12944248), (344, 8090155), (430, 6472124), (860, 3236062), (1109, 2509480), (1459, 1907480), (1720, 1618031), (2218, 1254740), (2918, 953740), (4436, 627370), (5545, 501896), (5836, 476870), (7295, 381496), (8872, 313685), (11090, 250948), (11672, 238435), (14590, 190748), (22180, 125474), (29180, 95374), (44360, 62737), (47687, 58360)]