64256920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 180633600

約数和(自身を除く): 116376680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 127, 130, 139, 140, 182, 254, 260, 278, 280, 364, 455, 508, 520, 556, 635, 695, 728, 889, 910, 973, 1016, 1112, 1270, 1390, 1651, 1778, 1807, 1820, 1946, 2540, 2780, 3302, 3556, 3614, 3640, 3892, 4445, 4865, 5080, 5560, 6604, 7112, 7228, 7784, 8255, 8890, 9035, 9730, 11557, 12649, 13208, 14456, 16510, 17653, 17780, 18070, 19460, 23114, 25298, 33020, 35306, 35560, 36140, 38920, 46228, 50596, 57785, 63245, 66040, 70612, 72280, 88265, 92456, 101192, 115570, 123571, 126490, 141224, 176530, 229489, 231140, 247142, 252980, 353060, 458978, 462280, 494284, 505960, 617855, 706120, 917956, 988568, 1147445, 1235710, 1606423, 1835912, 2294890, 2471420, 3212846, 4589780, 4942840, 6425692, 8032115, 9179560, 12851384, 16064230, 32128460, 64256920]

約数ペア:

[(1, 64256920), (2, 32128460), (4, 16064230), (5, 12851384), (7, 9179560), (8, 8032115), (10, 6425692), (13, 4942840), (14, 4589780), (20, 3212846), (26, 2471420), (28, 2294890), (35, 1835912), (40, 1606423), (52, 1235710), (56, 1147445), (65, 988568), (70, 917956), (91, 706120), (104, 617855), (127, 505960), (130, 494284), (139, 462280), (140, 458978), (182, 353060), (254, 252980), (260, 247142), (278, 231140), (280, 229489), (364, 176530), (455, 141224), (508, 126490), (520, 123571), (556, 115570), (635, 101192), (695, 92456), (728, 88265), (889, 72280), (910, 70612), (973, 66040), (1016, 63245), (1112, 57785), (1270, 50596), (1390, 46228), (1651, 38920), (1778, 36140), (1807, 35560), (1820, 35306), (1946, 33020), (2540, 25298), (2780, 23114), (3302, 19460), (3556, 18070), (3614, 17780), (3640, 17653), (3892, 16510), (4445, 14456), (4865, 13208), (5080, 12649), (5560, 11557), (6604, 9730), (7112, 9035), (7228, 8890), (7784, 8255)]