20189456

素因数分解:

$2^4\times 7^1\times {\mathrm{180263}}^1$

素因数の和:180278

約数の個数: 20

約数和(自身を含む): 44705472

約数和(自身を除く): 24516016

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 180263, 360526, 721052, 1261841, 1442104, 2523682, 2884208, 5047364, 10094728, 20189456]

約数ペア:

[(1, 20189456), (2, 10094728), (4, 5047364), (7, 2884208), (8, 2523682), (14, 1442104), (16, 1261841), (28, 721052), (56, 360526), (112, 180263)]