20665812

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 52607520

約数和(自身を除く): 31941708

約数列:

[1, 2, 3, 4, 6, 12, 17, 34, 51, 59, 68, 101, 102, 118, 177, 202, 204, 236, 289, 303, 354, 404, 578, 606, 708, 867, 1003, 1156, 1212, 1717, 1734, 2006, 3009, 3434, 3468, 4012, 5151, 5959, 6018, 6868, 10302, 11918, 12036, 17051, 17877, 20604, 23836, 29189, 34102, 35754, 51153, 58378, 68204, 71508, 87567, 101303, 102306, 116756, 175134, 202606, 204612, 303909, 350268, 405212, 607818, 1215636, 1722151, 3444302, 5166453, 6888604, 10332906, 20665812]

約数ペア:

[(1, 20665812), (2, 10332906), (3, 6888604), (4, 5166453), (6, 3444302), (12, 1722151), (17, 1215636), (34, 607818), (51, 405212), (59, 350268), (68, 303909), (101, 204612), (102, 202606), (118, 175134), (177, 116756), (202, 102306), (204, 101303), (236, 87567), (289, 71508), (303, 68204), (354, 58378), (404, 51153), (578, 35754), (606, 34102), (708, 29189), (867, 23836), (1003, 20604), (1156, 17877), (1212, 17051), (1717, 12036), (1734, 11918), (2006, 10302), (3009, 6868), (3434, 6018), (3468, 5959), (4012, 5151)]