20797441040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{720133}}^1$

素因数の和:720184

約数の個数: 60

約数和(自身を含む): 51033016044

約数和(自身を除く): 30235575004

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 28880, 720133, 1440266, 2880532, 3600665, 5761064, 7201330, 11522128, 13682527, 14402660, 27365054, 28805320, 54730108, 57610640, 68412635, 109460216, 136825270, 218920432, 259968013, 273650540, 519936026, 547301080, 1039872052, 1094602160, 1299840065, 2079744104, 2599680130, 4159488208, 5199360260, 10398720520, 20797441040]

約数ペア:

[(1, 20797441040), (2, 10398720520), (4, 5199360260), (5, 4159488208), (8, 2599680130), (10, 2079744104), (16, 1299840065), (19, 1094602160), (20, 1039872052), (38, 547301080), (40, 519936026), (76, 273650540), (80, 259968013), (95, 218920432), (152, 136825270), (190, 109460216), (304, 68412635), (361, 57610640), (380, 54730108), (722, 28805320), (760, 27365054), (1444, 14402660), (1520, 13682527), (1805, 11522128), (2888, 7201330), (3610, 5761064), (5776, 3600665), (7220, 2880532), (14440, 1440266), (28880, 720133)]