3987005

素因数分解:

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

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 5298048

約数和(自身を除く): 1311043

約数列:

[1, 5, 11, 55, 71, 355, 781, 1021, 3905, 5105, 11231, 56155, 72491, 362455, 797401, 3987005]

約数ペア:

[(1, 3987005), (5, 797401), (11, 362455), (55, 72491), (71, 56155), (355, 11231), (781, 5105), (1021, 3905)]