90840040

素因数分解:

$2^3\times 5^1\times {\mathrm{2271001}}^1$

素因数の和:2271012

約数の個数: 16

約数和(自身を含む): 204390180

約数和(自身を除く): 113550140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2271001, 4542002, 9084004, 11355005, 18168008, 22710010, 45420020, 90840040]

約数ペア:

[(1, 90840040), (2, 45420020), (4, 22710010), (5, 18168008), (8, 11355005), (10, 9084004), (20, 4542002), (40, 2271001)]