20958660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{116437}}^1$

素因数の和:116452

約数の個数: 36

約数和(自身を含む): 63575148

約数和(自身を除く): 42616488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 116437, 232874, 349311, 465748, 582185, 698622, 1047933, 1164370, 1397244, 1746555, 2095866, 2328740, 3493110, 4191732, 5239665, 6986220, 10479330, 20958660]

約数ペア:

[(1, 20958660), (2, 10479330), (3, 6986220), (4, 5239665), (5, 4191732), (6, 3493110), (9, 2328740), (10, 2095866), (12, 1746555), (15, 1397244), (18, 1164370), (20, 1047933), (30, 698622), (36, 582185), (45, 465748), (60, 349311), (90, 232874), (180, 116437)]