20580268

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{937}}^1$

素因数の和:994

約数の個数: 36

約数和(自身を含む): 40315240

約数和(自身を除く): 19734972

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 289, 323, 578, 646, 937, 1156, 1292, 1874, 3748, 5491, 10982, 15929, 17803, 21964, 31858, 35606, 63716, 71212, 270793, 302651, 541586, 605302, 1083172, 1210604, 5145067, 10290134, 20580268]

約数ペア:

[(1, 20580268), (2, 10290134), (4, 5145067), (17, 1210604), (19, 1083172), (34, 605302), (38, 541586), (68, 302651), (76, 270793), (289, 71212), (323, 63716), (578, 35606), (646, 31858), (937, 21964), (1156, 17803), (1292, 15929), (1874, 10982), (3748, 5491)]