81284225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17387}}^1$

素因数の和:17425

約数の個数: 24

約数和(自身を含む): 116430048

約数和(自身を除く): 35145823

約数列:

[1, 5, 11, 17, 25, 55, 85, 187, 275, 425, 935, 4675, 17387, 86935, 191257, 295579, 434675, 956285, 1477895, 3251369, 4781425, 7389475, 16256845, 81284225]

約数ペア:

[(1, 81284225), (5, 16256845), (11, 7389475), (17, 4781425), (25, 3251369), (55, 1477895), (85, 956285), (187, 434675), (275, 295579), (425, 191257), (935, 86935), (4675, 17387)]