1861036225

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{206209}}^1$

素因数の和:206257

約数の個数: 18

約数和(自身を含む): 2435546310

約数和(自身を除く): 574510085

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 9025, 206209, 1031045, 3917971, 5155225, 19589855, 74441449, 97949275, 372207245, 1861036225]

約数ペア:

[(1, 1861036225), (5, 372207245), (19, 97949275), (25, 74441449), (95, 19589855), (361, 5155225), (475, 3917971), (1805, 1031045), (9025, 206209)]