20794328720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{549533}}^1$

素因数の和:549600

約数の個数: 80

約数和(自身を含む): 53968635072

約数和(自身を除く): 33174306352

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 860, 880, 946, 1720, 1892, 2365, 3440, 3784, 4730, 7568, 9460, 18920, 37840, 549533, 1099066, 2198132, 2747665, 4396264, 5495330, 6044863, 8792528, 10990660, 12089726, 21981320, 23629919, 24179452, 30224315, 43962640, 47259838, 48358904, 60448630, 94519676, 96717808, 118149595, 120897260, 189039352, 236299190, 241794520, 259929109, 378078704, 472598380, 483589040, 519858218, 945196760, 1039716436, 1299645545, 1890393520, 2079432872, 2599291090, 4158865744, 5198582180, 10397164360, 20794328720]

約数ペア:

[(1, 20794328720), (2, 10397164360), (4, 5198582180), (5, 4158865744), (8, 2599291090), (10, 2079432872), (11, 1890393520), (16, 1299645545), (20, 1039716436), (22, 945196760), (40, 519858218), (43, 483589040), (44, 472598380), (55, 378078704), (80, 259929109), (86, 241794520), (88, 236299190), (110, 189039352), (172, 120897260), (176, 118149595), (215, 96717808), (220, 94519676), (344, 60448630), (430, 48358904), (440, 47259838), (473, 43962640), (688, 30224315), (860, 24179452), (880, 23629919), (946, 21981320), (1720, 12089726), (1892, 10990660), (2365, 8792528), (3440, 6044863), (3784, 5495330), (4730, 4396264), (7568, 2747665), (9460, 2198132), (18920, 1099066), (37840, 549533)]