257027680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:301

約数の個数: 192

約数和(自身を含む): 758661120

約数和(自身を除く): 501633440

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 127, 130, 139, 140, 160, 182, 208, 224, 254, 260, 278, 280, 364, 416, 455, 508, 520, 556, 560, 635, 695, 728, 889, 910, 973, 1016, 1040, 1112, 1120, 1270, 1390, 1456, 1651, 1778, 1807, 1820, 1946, 2032, 2080, 2224, 2540, 2780, 2912, 3302, 3556, 3614, 3640, 3892, 4064, 4445, 4448, 4865, 5080, 5560, 6604, 7112, 7228, 7280, 7784, 8255, 8890, 9035, 9730, 10160, 11120, 11557, 12649, 13208, 14224, 14456, 14560, 15568, 16510, 17653, 17780, 18070, 19460, 20320, 22240, 23114, 25298, 26416, 28448, 28912, 31136, 33020, 35306, 35560, 36140, 38920, 46228, 50596, 52832, 57785, 57824, 63245, 66040, 70612, 71120, 72280, 77840, 88265, 92456, 101192, 115570, 123571, 126490, 132080, 141224, 142240, 144560, 155680, 176530, 184912, 202384, 229489, 231140, 247142, 252980, 264160, 282448, 289120, 353060, 369824, 404768, 458978, 462280, 494284, 505960, 564896, 617855, 706120, 917956, 924560, 988568, 1011920, 1147445, 1235710, 1412240, 1606423, 1835912, 1849120, 1977136, 2023840, 2294890, 2471420, 2824480, 3212846, 3671824, 3954272, 4589780, 4942840, 6425692, 7343648, 8032115, 9179560, 9885680, 12851384, 16064230, 18359120, 19771360, 25702768, 32128460, 36718240, 51405536, 64256920, 128513840, 257027680]

約数ペア:

[(1, 257027680), (2, 128513840), (4, 64256920), (5, 51405536), (7, 36718240), (8, 32128460), (10, 25702768), (13, 19771360), (14, 18359120), (16, 16064230), (20, 12851384), (26, 9885680), (28, 9179560), (32, 8032115), (35, 7343648), (40, 6425692), (52, 4942840), (56, 4589780), (65, 3954272), (70, 3671824), (80, 3212846), (91, 2824480), (104, 2471420), (112, 2294890), (127, 2023840), (130, 1977136), (139, 1849120), (140, 1835912), (160, 1606423), (182, 1412240), (208, 1235710), (224, 1147445), (254, 1011920), (260, 988568), (278, 924560), (280, 917956), (364, 706120), (416, 617855), (455, 564896), (508, 505960), (520, 494284), (556, 462280), (560, 458978), (635, 404768), (695, 369824), (728, 353060), (889, 289120), (910, 282448), (973, 264160), (1016, 252980), (1040, 247142), (1112, 231140), (1120, 229489), (1270, 202384), (1390, 184912), (1456, 176530), (1651, 155680), (1778, 144560), (1807, 142240), (1820, 141224), (1946, 132080), (2032, 126490), (2080, 123571), (2224, 115570), (2540, 101192), (2780, 92456), (2912, 88265), (3302, 77840), (3556, 72280), (3614, 71120), (3640, 70612), (3892, 66040), (4064, 63245), (4445, 57824), (4448, 57785), (4865, 52832), (5080, 50596), (5560, 46228), (6604, 38920), (7112, 36140), (7228, 35560), (7280, 35306), (7784, 33020), (8255, 31136), (8890, 28912), (9035, 28448), (9730, 26416), (10160, 25298), (11120, 23114), (11557, 22240), (12649, 20320), (13208, 19460), (14224, 18070), (14456, 17780), (14560, 17653), (15568, 16510)]