128528660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{494341}}^1$

素因数の和:494363

約数の個数: 24

約数和(自身を含む): 290673096

約数和(自身を除く): 162144436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 494341, 988682, 1977364, 2471705, 4943410, 6426433, 9886820, 12852866, 25705732, 32132165, 64264330, 128528660]

約数ペア:

[(1, 128528660), (2, 64264330), (4, 32132165), (5, 25705732), (10, 12852866), (13, 9886820), (20, 6426433), (26, 4943410), (52, 2471705), (65, 1977364), (130, 988682), (260, 494341)]