207978100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4397}}^1$

素因数の和:4465

約数の個数: 72

約数和(自身を含む): 503905248

約数和(自身を除く): 295927148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1892, 2150, 2365, 4300, 4397, 4730, 8794, 9460, 11825, 17588, 21985, 23650, 43970, 47300, 48367, 87940, 96734, 109925, 189071, 193468, 219850, 241835, 378142, 439700, 483670, 756284, 945355, 967340, 1209175, 1890710, 2079781, 2418350, 3781420, 4159562, 4726775, 4836700, 8319124, 9453550, 10398905, 18907100, 20797810, 41595620, 51994525, 103989050, 207978100]

約数ペア:

[(1, 207978100), (2, 103989050), (4, 51994525), (5, 41595620), (10, 20797810), (11, 18907100), (20, 10398905), (22, 9453550), (25, 8319124), (43, 4836700), (44, 4726775), (50, 4159562), (55, 3781420), (86, 2418350), (100, 2079781), (110, 1890710), (172, 1209175), (215, 967340), (220, 945355), (275, 756284), (430, 483670), (473, 439700), (550, 378142), (860, 241835), (946, 219850), (1075, 193468), (1100, 189071), (1892, 109925), (2150, 96734), (2365, 87940), (4300, 48367), (4397, 47300), (4730, 43970), (8794, 23650), (9460, 21985), (11825, 17588)]