209404712

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:642

約数の個数: 64

約数和(自身を含む): 443197440

約数和(自身を除く): 233792728

約数列:

[1, 2, 4, 8, 11, 22, 41, 44, 82, 88, 127, 164, 254, 328, 451, 457, 508, 902, 914, 1016, 1397, 1804, 1828, 2794, 3608, 3656, 5027, 5207, 5588, 10054, 10414, 11176, 18737, 20108, 20828, 37474, 40216, 41656, 57277, 58039, 74948, 114554, 116078, 149896, 206107, 229108, 232156, 412214, 458216, 464312, 638429, 824428, 1276858, 1648856, 2379599, 2553716, 4759198, 5107432, 9518396, 19036792, 26175589, 52351178, 104702356, 209404712]

約数ペア:

[(1, 209404712), (2, 104702356), (4, 52351178), (8, 26175589), (11, 19036792), (22, 9518396), (41, 5107432), (44, 4759198), (82, 2553716), (88, 2379599), (127, 1648856), (164, 1276858), (254, 824428), (328, 638429), (451, 464312), (457, 458216), (508, 412214), (902, 232156), (914, 229108), (1016, 206107), (1397, 149896), (1804, 116078), (1828, 114554), (2794, 74948), (3608, 58039), (3656, 57277), (5027, 41656), (5207, 40216), (5588, 37474), (10054, 20828), (10414, 20108), (11176, 18737)]