858480020

素因数分解:

$2^2\times 5^1\times {\mathrm{42924001}}^1$

素因数の和:42924010

約数の個数: 12

約数和(自身を含む): 1802808084

約数和(自身を除く): 944328064

約数列:

[1, 2, 4, 5, 10, 20, 42924001, 85848002, 171696004, 214620005, 429240010, 858480020]

約数ペア:

[(1, 858480020), (2, 429240010), (4, 214620005), (5, 171696004), (10, 85848002), (20, 42924001)]