30720904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{225889}}^1$

素因数の和:225912

約数の個数: 16

約数和(自身を含む): 60990300

約数和(自身を除く): 30269396

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 225889, 451778, 903556, 1807112, 3840113, 7680226, 15360452, 30720904]

約数ペア:

[(1, 30720904), (2, 15360452), (4, 7680226), (8, 3840113), (17, 1807112), (34, 903556), (68, 451778), (136, 225889)]