18017225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{457}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 23852640

約数和(自身を除く): 5835415

約数列:

[1, 5, 19, 25, 83, 95, 415, 457, 475, 1577, 2075, 2285, 7885, 8683, 11425, 37931, 39425, 43415, 189655, 217075, 720689, 948275, 3603445, 18017225]

約数ペア:

[(1, 18017225), (5, 3603445), (19, 948275), (25, 720689), (83, 217075), (95, 189655), (415, 43415), (457, 39425), (475, 37931), (1577, 11425), (2075, 8683), (2285, 7885)]