9888921040

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{761}}^1\times {\mathrm{1279}}^1$

素因数の和:2180

約数の個数: 80

約数和(自身を含む): 23221370880

約数和(自身を除く): 13332449840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 761, 1016, 1270, 1279, 1522, 2032, 2540, 2558, 3044, 3805, 5080, 5116, 6088, 6395, 7610, 10160, 10232, 12176, 12790, 15220, 20464, 25580, 30440, 51160, 60880, 96647, 102320, 162433, 193294, 324866, 386588, 483235, 649732, 773176, 812165, 966470, 973319, 1299464, 1546352, 1624330, 1932940, 1946638, 2598928, 3248660, 3865880, 3893276, 4866595, 6497320, 7731760, 7786552, 9733190, 12994640, 15573104, 19466380, 38932760, 77865520, 123611513, 247223026, 494446052, 618057565, 988892104, 1236115130, 1977784208, 2472230260, 4944460520, 9888921040]

約数ペア:

[(1, 9888921040), (2, 4944460520), (4, 2472230260), (5, 1977784208), (8, 1236115130), (10, 988892104), (16, 618057565), (20, 494446052), (40, 247223026), (80, 123611513), (127, 77865520), (254, 38932760), (508, 19466380), (635, 15573104), (761, 12994640), (1016, 9733190), (1270, 7786552), (1279, 7731760), (1522, 6497320), (2032, 4866595), (2540, 3893276), (2558, 3865880), (3044, 3248660), (3805, 2598928), (5080, 1946638), (5116, 1932940), (6088, 1624330), (6395, 1546352), (7610, 1299464), (10160, 973319), (10232, 966470), (12176, 812165), (12790, 773176), (15220, 649732), (20464, 483235), (25580, 386588), (30440, 324866), (51160, 193294), (60880, 162433), (96647, 102320)]