220163956

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{1280023}}^1$

素因数の和:1280070

約数の個数: 12

約数和(自身を含む): 394247392

約数和(自身を除く): 174083436

約数列:

[1, 2, 4, 43, 86, 172, 1280023, 2560046, 5120092, 55040989, 110081978, 220163956]

約数ペア:

[(1, 220163956), (2, 110081978), (4, 55040989), (43, 5120092), (86, 2560046), (172, 1280023)]