20178580016

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{200407}}^1$

素因数の和:200482

約数の個数: 80

約数和(自身を含む): 47713136640

約数和(自身を除く): 27534556624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 56, 58, 62, 112, 116, 124, 203, 217, 232, 248, 406, 434, 464, 496, 812, 868, 899, 1624, 1736, 1798, 3248, 3472, 3596, 6293, 7192, 12586, 14384, 25172, 50344, 100688, 200407, 400814, 801628, 1402849, 1603256, 2805698, 3206512, 5611396, 5811803, 6212617, 11222792, 11623606, 12425234, 22445584, 23247212, 24850468, 40682621, 43488319, 46494424, 49700936, 81365242, 86976638, 92988848, 99401872, 162730484, 173953276, 180165893, 325460968, 347906552, 360331786, 650921936, 695813104, 720663572, 1261161251, 1441327144, 2522322502, 2882654288, 5044645004, 10089290008, 20178580016]

約数ペア:

[(1, 20178580016), (2, 10089290008), (4, 5044645004), (7, 2882654288), (8, 2522322502), (14, 1441327144), (16, 1261161251), (28, 720663572), (29, 695813104), (31, 650921936), (56, 360331786), (58, 347906552), (62, 325460968), (112, 180165893), (116, 173953276), (124, 162730484), (203, 99401872), (217, 92988848), (232, 86976638), (248, 81365242), (406, 49700936), (434, 46494424), (464, 43488319), (496, 40682621), (812, 24850468), (868, 23247212), (899, 22445584), (1624, 12425234), (1736, 11623606), (1798, 11222792), (3248, 6212617), (3472, 5811803), (3596, 5611396), (6293, 3206512), (7192, 2805698), (12586, 1603256), (14384, 1402849), (25172, 801628), (50344, 400814), (100688, 200407)]