400889216

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:432

約数の個数: 128

約数和(自身を含む): 994344960

約数和(自身を除く): 593455744

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 127, 128, 182, 208, 224, 254, 271, 364, 416, 448, 508, 542, 728, 832, 889, 896, 1016, 1084, 1456, 1651, 1664, 1778, 1897, 2032, 2168, 2912, 3302, 3523, 3556, 3794, 4064, 4336, 5824, 6604, 7046, 7112, 7588, 8128, 8672, 11557, 11648, 13208, 14092, 14224, 15176, 16256, 17344, 23114, 24661, 26416, 28184, 28448, 30352, 34417, 34688, 46228, 49322, 52832, 56368, 56896, 60704, 68834, 92456, 98644, 105664, 112736, 113792, 121408, 137668, 184912, 197288, 211328, 225472, 240919, 242816, 275336, 369824, 394576, 447421, 450944, 481838, 550672, 739648, 789152, 894842, 963676, 1101344, 1479296, 1578304, 1789684, 1927352, 2202688, 3131947, 3156608, 3579368, 3854704, 4405376, 6263894, 7158736, 7709408, 12527788, 14317472, 15418816, 25055576, 28634944, 30837632, 50111152, 57269888, 100222304, 200444608, 400889216]

約数ペア:

[(1, 400889216), (2, 200444608), (4, 100222304), (7, 57269888), (8, 50111152), (13, 30837632), (14, 28634944), (16, 25055576), (26, 15418816), (28, 14317472), (32, 12527788), (52, 7709408), (56, 7158736), (64, 6263894), (91, 4405376), (104, 3854704), (112, 3579368), (127, 3156608), (128, 3131947), (182, 2202688), (208, 1927352), (224, 1789684), (254, 1578304), (271, 1479296), (364, 1101344), (416, 963676), (448, 894842), (508, 789152), (542, 739648), (728, 550672), (832, 481838), (889, 450944), (896, 447421), (1016, 394576), (1084, 369824), (1456, 275336), (1651, 242816), (1664, 240919), (1778, 225472), (1897, 211328), (2032, 197288), (2168, 184912), (2912, 137668), (3302, 121408), (3523, 113792), (3556, 112736), (3794, 105664), (4064, 98644), (4336, 92456), (5824, 68834), (6604, 60704), (7046, 56896), (7112, 56368), (7588, 52832), (8128, 49322), (8672, 46228), (11557, 34688), (11648, 34417), (13208, 30352), (14092, 28448), (14224, 28184), (15176, 26416), (16256, 24661), (17344, 23114)]