18869020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23011}}^1$

素因数の和:23061

約数の個数: 24

約数和(自身を含む): 40593168

約数和(自身を除く): 21724148

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23011, 46022, 92044, 115055, 230110, 460220, 943451, 1886902, 3773804, 4717255, 9434510, 18869020]

約数ペア:

[(1, 18869020), (2, 9434510), (4, 4717255), (5, 3773804), (10, 1886902), (20, 943451), (41, 460220), (82, 230110), (164, 115055), (205, 92044), (410, 46022), (820, 23011)]