1818025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{601}}^1$

素因数の和:633

約数の個数: 18

約数和(自身を含む): 2482046

約数和(自身を除く): 664021

約数列:

[1, 5, 11, 25, 55, 121, 275, 601, 605, 3005, 3025, 6611, 15025, 33055, 72721, 165275, 363605, 1818025]

約数ペア:

[(1, 1818025), (5, 363605), (11, 165275), (25, 72721), (55, 33055), (121, 15025), (275, 6611), (601, 3025), (605, 3005)]