8904080

素因数分解:

$2^4\times 5^1\times {\mathrm{111301}}^1$

素因数の和:111314

約数の個数: 20

約数和(自身を含む): 20702172

約数和(自身を除く): 11798092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 111301, 222602, 445204, 556505, 890408, 1113010, 1780816, 2226020, 4452040, 8904080]

約数ペア:

[(1, 8904080), (2, 4452040), (4, 2226020), (5, 1780816), (8, 1113010), (10, 890408), (16, 556505), (20, 445204), (40, 222602), (80, 111301)]