20199275840

素因数分解:

$2^6\times 5^1\times {\mathrm{311}}^1\times {\mathrm{202967}}^1$

素因数の和:203295

約数の個数: 56

約数和(自身を含む): 48254424192

約数和(自身を除く): 28055148352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 311, 320, 622, 1244, 1555, 2488, 3110, 4976, 6220, 9952, 12440, 19904, 24880, 49760, 99520, 202967, 405934, 811868, 1014835, 1623736, 2029670, 3247472, 4059340, 6494944, 8118680, 12989888, 16237360, 32474720, 63122737, 64949440, 126245474, 252490948, 315613685, 504981896, 631227370, 1009963792, 1262454740, 2019927584, 2524909480, 4039855168, 5049818960, 10099637920, 20199275840]

約数ペア:

[(1, 20199275840), (2, 10099637920), (4, 5049818960), (5, 4039855168), (8, 2524909480), (10, 2019927584), (16, 1262454740), (20, 1009963792), (32, 631227370), (40, 504981896), (64, 315613685), (80, 252490948), (160, 126245474), (311, 64949440), (320, 63122737), (622, 32474720), (1244, 16237360), (1555, 12989888), (2488, 8118680), (3110, 6494944), (4976, 4059340), (6220, 3247472), (9952, 2029670), (12440, 1623736), (19904, 1014835), (24880, 811868), (49760, 405934), (99520, 202967)]