289325080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{657557}}^1$

素因数の和:657579

約数の個数: 32

約数和(自身を含む): 710162640

約数和(自身を除く): 420837560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 657557, 1315114, 2630228, 3287785, 5260456, 6575570, 7233127, 13151140, 14466254, 26302280, 28932508, 36165635, 57865016, 72331270, 144662540, 289325080]

約数ペア:

[(1, 289325080), (2, 144662540), (4, 72331270), (5, 57865016), (8, 36165635), (10, 28932508), (11, 26302280), (20, 14466254), (22, 13151140), (40, 7233127), (44, 6575570), (55, 5260456), (88, 3287785), (110, 2630228), (220, 1315114), (440, 657557)]