20489020

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4513}}^1$

素因数の和:4749

約数の個数: 24

約数和(自身を含む): 43226064

約数和(自身を除く): 22737044

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4513, 4540, 9026, 18052, 22565, 45130, 90260, 1024451, 2048902, 4097804, 5122255, 10244510, 20489020]

約数ペア:

[(1, 20489020), (2, 10244510), (4, 5122255), (5, 4097804), (10, 2048902), (20, 1024451), (227, 90260), (454, 45130), (908, 22565), (1135, 18052), (2270, 9026), (4513, 4540)]