18728585

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1439}}^1$

素因数の和:1600

約数の個数: 16

約数和(自身を含む): 23846400

約数和(自身を除く): 5117815

約数列:

[1, 5, 19, 95, 137, 685, 1439, 2603, 7195, 13015, 27341, 136705, 197143, 985715, 3745717, 18728585]

約数ペア:

[(1, 18728585), (5, 3745717), (19, 985715), (95, 197143), (137, 136705), (685, 27341), (1439, 13015), (2603, 7195)]