18138725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{929}}^1$

素因数の和:1021

約数の個数: 24

約数和(自身を含む): 24909120

約数和(自身を除く): 6770395

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 929, 1775, 3905, 4645, 10219, 19525, 23225, 51095, 65959, 255475, 329795, 725549, 1648975, 3627745, 18138725]

約数ペア:

[(1, 18138725), (5, 3627745), (11, 1648975), (25, 725549), (55, 329795), (71, 255475), (275, 65959), (355, 51095), (781, 23225), (929, 19525), (1775, 10219), (3905, 4645)]