18210220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130073}}^1$

素因数の和:130089

約数の個数: 24

約数和(自身を含む): 43704864

約数和(自身を除く): 25494644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130073, 260146, 520292, 650365, 910511, 1300730, 1821022, 2601460, 3642044, 4552555, 9105110, 18210220]

約数ペア:

[(1, 18210220), (2, 9105110), (4, 4552555), (5, 3642044), (7, 2601460), (10, 1821022), (14, 1300730), (20, 910511), (28, 650365), (35, 520292), (70, 260146), (140, 130073)]