8904040

素因数分解:

$2^3\times 5^1\times {\mathrm{222601}}^1$

素因数の和:222612

約数の個数: 16

約数和(自身を含む): 20034180

約数和(自身を除く): 11130140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 222601, 445202, 890404, 1113005, 1780808, 2226010, 4452020, 8904040]

約数ペア:

[(1, 8904040), (2, 4452020), (4, 2226010), (5, 1780808), (8, 1113005), (10, 890404), (20, 445202), (40, 222601)]