20878128128

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8387}}^1$

素因数の和:8448

約数の個数: 176

約数和(自身を含む): 51922793664

約数和(自身を除く): 31044665536

約数列:

[1, 2, 4, 8, 11, 13, 16, 17, 22, 26, 32, 34, 44, 52, 64, 68, 88, 104, 128, 136, 143, 176, 187, 208, 221, 256, 272, 286, 352, 374, 416, 442, 512, 544, 572, 704, 748, 832, 884, 1024, 1088, 1144, 1408, 1496, 1664, 1768, 2176, 2288, 2431, 2816, 2992, 3328, 3536, 4352, 4576, 4862, 5632, 5984, 6656, 7072, 8387, 8704, 9152, 9724, 11264, 11968, 13312, 14144, 16774, 17408, 18304, 19448, 23936, 28288, 33548, 36608, 38896, 47872, 56576, 67096, 73216, 77792, 92257, 95744, 109031, 113152, 134192, 142579, 146432, 155584, 184514, 191488, 218062, 226304, 268384, 285158, 311168, 369028, 436124, 536768, 570316, 622336, 738056, 872248, 1073536, 1140632, 1199341, 1244672, 1476112, 1568369, 1744496, 1853527, 2147072, 2281264, 2398682, 2489344, 2952224, 3136738, 3488992, 3707054, 4294144, 4562528, 4797364, 5904448, 6273476, 6977984, 7414108, 8588288, 9125056, 9594728, 11808896, 12546952, 13955968, 14828216, 18250112, 19189456, 20388797, 23617792, 25093904, 27911936, 29656432, 36500224, 38378912, 40777594, 47235584, 50187808, 55823872, 59312864, 73000448, 76757824, 81555188, 94471168, 100375616, 111647744, 118625728, 146000896, 153515648, 163110376, 200751232, 237251456, 307031296, 326220752, 401502464, 474502912, 614062592, 652441504, 803004928, 949005824, 1228125184, 1304883008, 1606009856, 1898011648, 2609766016, 5219532032, 10439064064, 20878128128]

約数ペア:

[(1, 20878128128), (2, 10439064064), (4, 5219532032), (8, 2609766016), (11, 1898011648), (13, 1606009856), (16, 1304883008), (17, 1228125184), (22, 949005824), (26, 803004928), (32, 652441504), (34, 614062592), (44, 474502912), (52, 401502464), (64, 326220752), (68, 307031296), (88, 237251456), (104, 200751232), (128, 163110376), (136, 153515648), (143, 146000896), (176, 118625728), (187, 111647744), (208, 100375616), (221, 94471168), (256, 81555188), (272, 76757824), (286, 73000448), (352, 59312864), (374, 55823872), (416, 50187808), (442, 47235584), (512, 40777594), (544, 38378912), (572, 36500224), (704, 29656432), (748, 27911936), (832, 25093904), (884, 23617792), (1024, 20388797), (1088, 19189456), (1144, 18250112), (1408, 14828216), (1496, 13955968), (1664, 12546952), (1768, 11808896), (2176, 9594728), (2288, 9125056), (2431, 8588288), (2816, 7414108), (2992, 6977984), (3328, 6273476), (3536, 5904448), (4352, 4797364), (4576, 4562528), (4862, 4294144), (5632, 3707054), (5984, 3488992), (6656, 3136738), (7072, 2952224), (8387, 2489344), (8704, 2398682), (9152, 2281264), (9724, 2147072), (11264, 1853527), (11968, 1744496), (13312, 1568369), (14144, 1476112), (16774, 1244672), (17408, 1199341), (18304, 1140632), (19448, 1073536), (23936, 872248), (28288, 738056), (33548, 622336), (36608, 570316), (38896, 536768), (47872, 436124), (56576, 369028), (67096, 311168), (73216, 285158), (77792, 268384), (92257, 226304), (95744, 218062), (109031, 191488), (113152, 184514), (134192, 155584), (142579, 146432)]