15221140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1609}}^1$

素因数の和:1672

約数の個数: 48

約数和(自身を含む): 35703360

約数和(自身を除く): 20482220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1609, 1892, 2365, 3218, 4730, 6436, 8045, 9460, 16090, 17699, 32180, 35398, 69187, 70796, 88495, 138374, 176990, 276748, 345935, 353980, 691870, 761057, 1383740, 1522114, 3044228, 3805285, 7610570, 15221140]

約数ペア:

[(1, 15221140), (2, 7610570), (4, 3805285), (5, 3044228), (10, 1522114), (11, 1383740), (20, 761057), (22, 691870), (43, 353980), (44, 345935), (55, 276748), (86, 176990), (110, 138374), (172, 88495), (215, 70796), (220, 69187), (430, 35398), (473, 32180), (860, 17699), (946, 16090), (1609, 9460), (1892, 8045), (2365, 6436), (3218, 4730)]