19440025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{317}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 26498304

約数和(自身を除く): 7058279

約数列:

[1, 5, 11, 25, 55, 223, 275, 317, 1115, 1585, 2453, 3487, 5575, 7925, 12265, 17435, 61325, 70691, 87175, 353455, 777601, 1767275, 3888005, 19440025]

約数ペア:

[(1, 19440025), (5, 3888005), (11, 1767275), (25, 777601), (55, 353455), (223, 87175), (275, 70691), (317, 61325), (1115, 17435), (1585, 12265), (2453, 7925), (3487, 5575)]