420932140

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{17209}}^1$

素因数の和:18441

約数の個数: 24

約数和(自身を含む): 884731680

約数和(自身を除く): 463799540

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 4892, 6115, 12230, 17209, 24460, 34418, 68836, 86045, 172090, 344180, 21046607, 42093214, 84186428, 105233035, 210466070, 420932140]

約数ペア:

[(1, 420932140), (2, 210466070), (4, 105233035), (5, 84186428), (10, 42093214), (20, 21046607), (1223, 344180), (2446, 172090), (4892, 86045), (6115, 68836), (12230, 34418), (17209, 24460)]