20512125268

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{479569}}^1$

素因数の和:479644

約数の個数: 36

約数和(自身を含む): 39162645340

約数和(自身を除く): 18650520072

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 578, 629, 1156, 1258, 2516, 10693, 21386, 42772, 479569, 959138, 1918276, 8152673, 16305346, 17744053, 32610692, 35488106, 70976212, 138595441, 277190882, 301648901, 554381764, 603297802, 1206595604, 5128031317, 10256062634, 20512125268]

約数ペア:

[(1, 20512125268), (2, 10256062634), (4, 5128031317), (17, 1206595604), (34, 603297802), (37, 554381764), (68, 301648901), (74, 277190882), (148, 138595441), (289, 70976212), (578, 35488106), (629, 32610692), (1156, 17744053), (1258, 16305346), (2516, 8152673), (10693, 1918276), (21386, 959138), (42772, 479569)]