20087851216

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{1279}}^1\times {\mathrm{9719}}^1$

素因数の和:11107

約数の個数: 40

約数和(自身を含む): 39340339200

約数和(自身を除く): 19252487984

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1279, 1616, 2558, 5116, 9719, 10232, 19438, 20464, 38876, 77752, 129179, 155504, 258358, 516716, 981619, 1033432, 1963238, 2066864, 3926476, 7852952, 12430601, 15705904, 24861202, 49722404, 99444808, 198889616, 1255490701, 2510981402, 5021962804, 10043925608, 20087851216]

約数ペア:

[(1, 20087851216), (2, 10043925608), (4, 5021962804), (8, 2510981402), (16, 1255490701), (101, 198889616), (202, 99444808), (404, 49722404), (808, 24861202), (1279, 15705904), (1616, 12430601), (2558, 7852952), (5116, 3926476), (9719, 2066864), (10232, 1963238), (19438, 1033432), (20464, 981619), (38876, 516716), (77752, 258358), (129179, 155504)]