360040

素因数分解:

$2^3\times 5^1\times {\mathrm{9001}}^1$

素因数の和:9012

約数の個数: 16

約数和(自身を含む): 810180

約数和(自身を除く): 450140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9001, 18002, 36004, 45005, 72008, 90010, 180020, 360040]

約数ペア:

[(1, 360040), (2, 180020), (4, 90010), (5, 72008), (8, 45005), (10, 36004), (20, 18002), (40, 9001)]