20503864504

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 41564897280

約数和(自身を除く): 21061032776

約数列:

[1, 2, 4, 8, 31, 53, 62, 71, 106, 124, 127, 142, 173, 212, 248, 254, 284, 346, 424, 508, 568, 692, 1016, 1384, 1643, 2201, 3286, 3763, 3937, 4402, 5363, 6572, 6731, 7526, 7874, 8804, 9017, 9169, 10726, 12283, 13144, 13462, 15052, 15748, 17608, 18034, 18338, 21452, 21971, 24566, 26924, 30104, 31496, 36068, 36676, 42904, 43942, 49132, 53848, 72136, 73352, 87884, 98264, 116653, 175768, 208661, 233306, 279527, 284239, 380773, 417322, 466612, 477901, 559054, 568478, 650999, 681101, 761546, 834644, 933224, 955802, 1118108, 1136956, 1164463, 1301998, 1362202, 1523092, 1559941, 1669288, 1911604, 2236216, 2273912, 2328926, 2603996, 2724404, 3046184, 3119882, 3823208, 4657852, 5207992, 5448808, 6239764, 9315704, 12479528, 14814931, 20180969, 29629862, 36098353, 40361938, 48358171, 59259724, 72196706, 80723876, 82676873, 96716342, 118519448, 144393412, 161447752, 165353746, 193432684, 288786824, 330707492, 386865368, 661414984, 2562983063, 5125966126, 10251932252, 20503864504]

約数ペア:

[(1, 20503864504), (2, 10251932252), (4, 5125966126), (8, 2562983063), (31, 661414984), (53, 386865368), (62, 330707492), (71, 288786824), (106, 193432684), (124, 165353746), (127, 161447752), (142, 144393412), (173, 118519448), (212, 96716342), (248, 82676873), (254, 80723876), (284, 72196706), (346, 59259724), (424, 48358171), (508, 40361938), (568, 36098353), (692, 29629862), (1016, 20180969), (1384, 14814931), (1643, 12479528), (2201, 9315704), (3286, 6239764), (3763, 5448808), (3937, 5207992), (4402, 4657852), (5363, 3823208), (6572, 3119882), (6731, 3046184), (7526, 2724404), (7874, 2603996), (8804, 2328926), (9017, 2273912), (9169, 2236216), (10726, 1911604), (12283, 1669288), (13144, 1559941), (13462, 1523092), (15052, 1362202), (15748, 1301998), (17608, 1164463), (18034, 1136956), (18338, 1118108), (21452, 955802), (21971, 933224), (24566, 834644), (26924, 761546), (30104, 681101), (31496, 650999), (36068, 568478), (36676, 559054), (42904, 477901), (43942, 466612), (49132, 417322), (53848, 380773), (72136, 284239), (73352, 279527), (87884, 233306), (98264, 208661), (116653, 175768)]