149732020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{4049}}^1$

素因数の和:4144

約数の個数: 36

約数和(自身を含む): 321999300

約数和(自身を除く): 172267280

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1849, 3698, 4049, 7396, 8098, 9245, 16196, 18490, 20245, 36980, 40490, 80980, 174107, 348214, 696428, 870535, 1741070, 3482140, 7486601, 14973202, 29946404, 37433005, 74866010, 149732020]

約数ペア:

[(1, 149732020), (2, 74866010), (4, 37433005), (5, 29946404), (10, 14973202), (20, 7486601), (43, 3482140), (86, 1741070), (172, 870535), (215, 696428), (430, 348214), (860, 174107), (1849, 80980), (3698, 40490), (4049, 36980), (7396, 20245), (8098, 18490), (9245, 16196)]