20090044

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{263}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 38552976

約数和(自身を除く): 18462932

約数列:

[1, 2, 4, 13, 26, 52, 113, 169, 226, 263, 338, 452, 526, 676, 1052, 1469, 2938, 3419, 5876, 6838, 13676, 19097, 29719, 38194, 44447, 59438, 76388, 88894, 118876, 177788, 386347, 772694, 1545388, 5022511, 10045022, 20090044]

約数ペア:

[(1, 20090044), (2, 10045022), (4, 5022511), (13, 1545388), (26, 772694), (52, 386347), (113, 177788), (169, 118876), (226, 88894), (263, 76388), (338, 59438), (452, 44447), (526, 38194), (676, 29719), (1052, 19097), (1469, 13676), (2938, 6838), (3419, 5876)]