20181000005

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{4008143}}^1$

素因数の和:4008220

約数の個数: 16

約数和(自身を含む): 25972773120

約数和(自身を除く): 5791773115

約数列:

[1, 5, 19, 53, 95, 265, 1007, 5035, 4008143, 20040715, 76154717, 212431579, 380773585, 1062157895, 4036200001, 20181000005]

約数ペア:

[(1, 20181000005), (5, 4036200001), (19, 1062157895), (53, 380773585), (95, 212431579), (265, 76154717), (1007, 20040715), (5035, 4008143)]