2181396080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1435129}}^1$

素因数の和:1435161

約数の個数: 40

約数和(自身を含む): 5338683600

約数和(自身を除く): 3157287520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1435129, 2870258, 5740516, 7175645, 11481032, 14351290, 22962064, 27267451, 28702580, 54534902, 57405160, 109069804, 114810320, 136337255, 218139608, 272674510, 436279216, 545349020, 1090698040, 2181396080]

約数ペア:

[(1, 2181396080), (2, 1090698040), (4, 545349020), (5, 436279216), (8, 272674510), (10, 218139608), (16, 136337255), (19, 114810320), (20, 109069804), (38, 57405160), (40, 54534902), (76, 28702580), (80, 27267451), (95, 22962064), (152, 14351290), (190, 11481032), (304, 7175645), (380, 5740516), (760, 2870258), (1520, 1435129)]