666644

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 1293600

約数和(自身を除く): 626956

約数列:

[1, 2, 4, 11, 22, 44, 109, 139, 218, 278, 436, 556, 1199, 1529, 2398, 3058, 4796, 6116, 15151, 30302, 60604, 166661, 333322, 666644]

約数ペア:

[(1, 666644), (2, 333322), (4, 166661), (11, 60604), (22, 30302), (44, 15151), (109, 6116), (139, 4796), (218, 3058), (278, 2398), (436, 1529), (556, 1199)]