18379460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{4397}}^1$

素因数の和:4436

約数の個数: 48

約数和(自身を含む): 44331840

約数和(自身を除く): 25952380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 4397, 8794, 17588, 21985, 43970, 48367, 83543, 87940, 96734, 167086, 193468, 241835, 334172, 417715, 483670, 835430, 918973, 967340, 1670860, 1837946, 3675892, 4594865, 9189730, 18379460]

約数ペア:

[(1, 18379460), (2, 9189730), (4, 4594865), (5, 3675892), (10, 1837946), (11, 1670860), (19, 967340), (20, 918973), (22, 835430), (38, 483670), (44, 417715), (55, 334172), (76, 241835), (95, 193468), (110, 167086), (190, 96734), (209, 87940), (220, 83543), (380, 48367), (418, 43970), (836, 21985), (1045, 17588), (2090, 8794), (4180, 4397)]