18217963520

素因数分解:

$2^{12}\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8161}}^1$

素因数の和:8299

約数の個数: 104

約数和(自身を含む): 44124261720

約数和(自身を除く): 25906298200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 320, 436, 512, 545, 640, 872, 1024, 1090, 1280, 1744, 2048, 2180, 2560, 3488, 4096, 4360, 5120, 6976, 8161, 8720, 10240, 13952, 16322, 17440, 20480, 27904, 32644, 34880, 40805, 55808, 65288, 69760, 81610, 111616, 130576, 139520, 163220, 223232, 261152, 279040, 326440, 446464, 522304, 558080, 652880, 889549, 1044608, 1116160, 1305760, 1779098, 2089216, 2232320, 2611520, 3558196, 4178432, 4447745, 5223040, 7116392, 8356864, 8895490, 10446080, 14232784, 16713728, 17790980, 20892160, 28465568, 33427456, 35581960, 41784320, 56931136, 71163920, 83568640, 113862272, 142327840, 167137280, 227724544, 284655680, 455449088, 569311360, 910898176, 1138622720, 1821796352, 2277245440, 3643592704, 4554490880, 9108981760, 18217963520]

約数ペア:

[(1, 18217963520), (2, 9108981760), (4, 4554490880), (5, 3643592704), (8, 2277245440), (10, 1821796352), (16, 1138622720), (20, 910898176), (32, 569311360), (40, 455449088), (64, 284655680), (80, 227724544), (109, 167137280), (128, 142327840), (160, 113862272), (218, 83568640), (256, 71163920), (320, 56931136), (436, 41784320), (512, 35581960), (545, 33427456), (640, 28465568), (872, 20892160), (1024, 17790980), (1090, 16713728), (1280, 14232784), (1744, 10446080), (2048, 8895490), (2180, 8356864), (2560, 7116392), (3488, 5223040), (4096, 4447745), (4360, 4178432), (5120, 3558196), (6976, 2611520), (8161, 2232320), (8720, 2089216), (10240, 1779098), (13952, 1305760), (16322, 1116160), (17440, 1044608), (20480, 889549), (27904, 652880), (32644, 558080), (34880, 522304), (40805, 446464), (55808, 326440), (65288, 279040), (69760, 261152), (81610, 223232), (111616, 163220), (130576, 139520)]