20138105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{863}}^1$

素因数の和:1240

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5989255

約数列:

[1, 5, 13, 65, 359, 863, 1795, 4315, 4667, 11219, 23335, 56095, 309817, 1549085, 4027621, 20138105]

約数ペア:

[(1, 20138105), (5, 4027621), (13, 1549085), (65, 309817), (359, 56095), (863, 23335), (1795, 11219), (4315, 4667)]