20439420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340657}}^1$

素因数の和:340669

約数の個数: 24

約数和(自身を含む): 57230544

約数和(自身を除く): 36791124

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340657, 681314, 1021971, 1362628, 1703285, 2043942, 3406570, 4087884, 5109855, 6813140, 10219710, 20439420]

約数ペア:

[(1, 20439420), (2, 10219710), (3, 6813140), (4, 5109855), (5, 4087884), (6, 3406570), (10, 2043942), (12, 1703285), (15, 1362628), (20, 1021971), (30, 681314), (60, 340657)]