20548372

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{269}}^1$

素因数の和:412

約数の個数: 36

約数和(自身を含む): 39429180

約数和(自身を除く): 18880808

約数列:

[1, 2, 4, 13, 26, 52, 113, 169, 226, 269, 338, 452, 538, 676, 1076, 1469, 2938, 3497, 5876, 6994, 13988, 19097, 30397, 38194, 45461, 60794, 76388, 90922, 121588, 181844, 395161, 790322, 1580644, 5137093, 10274186, 20548372]

約数ペア:

[(1, 20548372), (2, 10274186), (4, 5137093), (13, 1580644), (26, 790322), (52, 395161), (113, 181844), (169, 121588), (226, 90922), (269, 76388), (338, 60794), (452, 45461), (538, 38194), (676, 30397), (1076, 19097), (1469, 13988), (2938, 6994), (3497, 5876)]