418820

素因数分解:

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

素因数の和:539

約数の個数: 24

約数和(自身を含む): 901824

約数和(自身を除く): 483004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 487, 860, 974, 1948, 2435, 4870, 9740, 20941, 41882, 83764, 104705, 209410, 418820]

約数ペア:

[(1, 418820), (2, 209410), (4, 104705), (5, 83764), (10, 41882), (20, 20941), (43, 9740), (86, 4870), (172, 2435), (215, 1948), (430, 974), (487, 860)]