19270225

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{4561}}^1$

素因数の和:4597

約数の個数: 18

約数和(自身を含む): 25880226

約数和(自身を除く): 6610001

約数列:

[1, 5, 13, 25, 65, 169, 325, 845, 4225, 4561, 22805, 59293, 114025, 296465, 770809, 1482325, 3854045, 19270225]

約数ペア:

[(1, 19270225), (5, 3854045), (13, 1482325), (25, 770809), (65, 296465), (169, 114025), (325, 59293), (845, 22805), (4225, 4561)]