866388620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{13567}}^1$

素因数の和:13710

約数の個数: 48

約数和(自身を含む): 1896480768

約数和(自身を除く): 1030092148

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 103, 124, 155, 206, 310, 412, 515, 620, 1030, 2060, 3193, 6386, 12772, 13567, 15965, 27134, 31930, 54268, 63860, 67835, 135670, 271340, 420577, 841154, 1397401, 1682308, 2102885, 2794802, 4205770, 5589604, 6987005, 8411540, 13974010, 27948020, 43319431, 86638862, 173277724, 216597155, 433194310, 866388620]

約数ペア:

[(1, 866388620), (2, 433194310), (4, 216597155), (5, 173277724), (10, 86638862), (20, 43319431), (31, 27948020), (62, 13974010), (103, 8411540), (124, 6987005), (155, 5589604), (206, 4205770), (310, 2794802), (412, 2102885), (515, 1682308), (620, 1397401), (1030, 841154), (2060, 420577), (3193, 271340), (6386, 135670), (12772, 67835), (13567, 63860), (15965, 54268), (27134, 31930)]