257534859932

素因数分解:

$2^2\times 7^2\times {\mathrm{97}}^1\times {\mathrm{191}}^1\times {\mathrm{70921}}^1$

素因数の和:71227

約数の個数: 72

約数和(自身を含む): 532452872448

約数和(自身を除く): 274918012516

約数列:

[1, 2, 4, 7, 14, 28, 49, 97, 98, 191, 194, 196, 382, 388, 679, 764, 1337, 1358, 2674, 2716, 4753, 5348, 9359, 9506, 18527, 18718, 19012, 37054, 37436, 70921, 74108, 129689, 141842, 259378, 283684, 496447, 518756, 907823, 992894, 1815646, 1985788, 3475129, 3631292, 6879337, 6950258, 13545911, 13758674, 13900516, 27091822, 27517348, 48155359, 54183644, 94821377, 96310718, 189642754, 192621436, 337087513, 379285508, 663749639, 674175026, 1313953367, 1327499278, 1348350052, 2627906734, 2654998556, 5255813468, 9197673569, 18395347138, 36790694276, 64383714983, 128767429966, 257534859932]

約数ペア:

[(1, 257534859932), (2, 128767429966), (4, 64383714983), (7, 36790694276), (14, 18395347138), (28, 9197673569), (49, 5255813468), (97, 2654998556), (98, 2627906734), (191, 1348350052), (194, 1327499278), (196, 1313953367), (382, 674175026), (388, 663749639), (679, 379285508), (764, 337087513), (1337, 192621436), (1358, 189642754), (2674, 96310718), (2716, 94821377), (4753, 54183644), (5348, 48155359), (9359, 27517348), (9506, 27091822), (18527, 13900516), (18718, 13758674), (19012, 13545911), (37054, 6950258), (37436, 6879337), (70921, 3631292), (74108, 3475129), (129689, 1985788), (141842, 1815646), (259378, 992894), (283684, 907823), (496447, 518756)]