20286475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1039}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 27855360

約数和(自身を除く): 7568885

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1039, 1775, 3905, 5195, 11429, 19525, 25975, 57145, 73769, 285725, 368845, 811459, 1844225, 4057295, 20286475]

約数ペア:

[(1, 20286475), (5, 4057295), (11, 1844225), (25, 811459), (55, 368845), (71, 285725), (275, 73769), (355, 57145), (781, 25975), (1039, 19525), (1775, 11429), (3905, 5195)]