6800020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7907}}^1$

素因数の和:7959

約数の個数: 24

約数和(自身を含む): 14613984

約数和(自身を除く): 7813964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 7907, 15814, 31628, 39535, 79070, 158140, 340001, 680002, 1360004, 1700005, 3400010, 6800020]

約数ペア:

[(1, 6800020), (2, 3400010), (4, 1700005), (5, 1360004), (10, 680002), (20, 340001), (43, 158140), (86, 79070), (172, 39535), (215, 31628), (430, 15814), (860, 7907)]