2008160540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{491}}^1$

素因数の和:795

約数の個数: 96

約数和(自身を含む): 4562611200

約数和(自身を除く): 2554450660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 229, 235, 380, 458, 470, 491, 893, 916, 940, 982, 1145, 1786, 1964, 2290, 2455, 3572, 4351, 4465, 4580, 4910, 8702, 8930, 9329, 9820, 10763, 17404, 17860, 18658, 21526, 21755, 23077, 37316, 43052, 43510, 46154, 46645, 53815, 87020, 92308, 93290, 107630, 112439, 115385, 186580, 204497, 215260, 224878, 230770, 408994, 438463, 449756, 461540, 562195, 817988, 876926, 1022485, 1124390, 1753852, 2044970, 2136341, 2192315, 2248780, 4089940, 4272682, 4384630, 5284633, 8545364, 8769260, 10569266, 10681705, 21138532, 21363410, 26423165, 42726820, 52846330, 100408027, 105692660, 200816054, 401632108, 502040135, 1004080270, 2008160540]

約数ペア:

[(1, 2008160540), (2, 1004080270), (4, 502040135), (5, 401632108), (10, 200816054), (19, 105692660), (20, 100408027), (38, 52846330), (47, 42726820), (76, 26423165), (94, 21363410), (95, 21138532), (188, 10681705), (190, 10569266), (229, 8769260), (235, 8545364), (380, 5284633), (458, 4384630), (470, 4272682), (491, 4089940), (893, 2248780), (916, 2192315), (940, 2136341), (982, 2044970), (1145, 1753852), (1786, 1124390), (1964, 1022485), (2290, 876926), (2455, 817988), (3572, 562195), (4351, 461540), (4465, 449756), (4580, 438463), (4910, 408994), (8702, 230770), (8930, 224878), (9329, 215260), (9820, 204497), (10763, 186580), (17404, 115385), (17860, 112439), (18658, 107630), (21526, 93290), (21755, 92308), (23077, 87020), (37316, 53815), (43052, 46645), (43510, 46154)]