18009260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{487}}^1$

素因数の和:582

約数の個数: 36

約数和(自身を含む): 38798928

約数和(自身を除く): 20789668

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 487, 860, 974, 1849, 1948, 2435, 3698, 4870, 7396, 9245, 9740, 18490, 20941, 36980, 41882, 83764, 104705, 209410, 418820, 900463, 1800926, 3601852, 4502315, 9004630, 18009260]

約数ペア:

[(1, 18009260), (2, 9004630), (4, 4502315), (5, 3601852), (10, 1800926), (20, 900463), (43, 418820), (86, 209410), (172, 104705), (215, 83764), (430, 41882), (487, 36980), (860, 20941), (974, 18490), (1849, 9740), (1948, 9245), (2435, 7396), (3698, 4870)]