19935025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 27373248

約数和(自身を除く): 7438223

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1021, 1775, 3905, 5105, 11231, 19525, 25525, 56155, 72491, 280775, 362455, 797401, 1812275, 3987005, 19935025]

約数ペア:

[(1, 19935025), (5, 3987005), (11, 1812275), (25, 797401), (55, 362455), (71, 280775), (275, 72491), (355, 56155), (781, 25525), (1021, 19525), (1775, 11231), (3905, 5105)]