3600040

素因数分解:

$2^3\times 5^1\times {\mathrm{90001}}^1$

素因数の和:90012

約数の個数: 16

約数和(自身を含む): 8100180

約数和(自身を除く): 4500140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 90001, 180002, 360004, 450005, 720008, 900010, 1800020, 3600040]

約数ペア:

[(1, 3600040), (2, 1800020), (4, 900010), (5, 720008), (8, 450005), (10, 360004), (20, 180002), (40, 90001)]