16217020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{173}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 35370720

約数和(自身を除く): 19153700

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 173, 215, 218, 346, 430, 436, 545, 692, 860, 865, 1090, 1730, 2180, 3460, 4687, 7439, 9374, 14878, 18748, 18857, 23435, 29756, 37195, 37714, 46870, 74390, 75428, 93740, 94285, 148780, 188570, 377140, 810851, 1621702, 3243404, 4054255, 8108510, 16217020]

約数ペア:

[(1, 16217020), (2, 8108510), (4, 4054255), (5, 3243404), (10, 1621702), (20, 810851), (43, 377140), (86, 188570), (109, 148780), (172, 94285), (173, 93740), (215, 75428), (218, 74390), (346, 46870), (430, 37714), (436, 37195), (545, 29756), (692, 23435), (860, 18857), (865, 18748), (1090, 14878), (1730, 9374), (2180, 7439), (3460, 4687)]