2722225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 3883680

約数和(自身を除く): 1161455

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 521, 1045, 2605, 5225, 5731, 9899, 13025, 28655, 49495, 108889, 143275, 247475, 544445, 2722225]

約数ペア:

[(1, 2722225), (5, 544445), (11, 247475), (19, 143275), (25, 108889), (55, 49495), (95, 28655), (209, 13025), (275, 9899), (475, 5731), (521, 5225), (1045, 2605)]