18453020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{499}}^1$

素因数の和:594

約数の個数: 36

約数和(自身を含む): 39753000

約数和(自身を除く): 21299980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 499, 860, 998, 1849, 1996, 2495, 3698, 4990, 7396, 9245, 9980, 18490, 21457, 36980, 42914, 85828, 107285, 214570, 429140, 922651, 1845302, 3690604, 4613255, 9226510, 18453020]

約数ペア:

[(1, 18453020), (2, 9226510), (4, 4613255), (5, 3690604), (10, 1845302), (20, 922651), (43, 429140), (86, 214570), (172, 107285), (215, 85828), (430, 42914), (499, 36980), (860, 21457), (998, 18490), (1849, 9980), (1996, 9245), (2495, 7396), (3698, 4990)]