280720439

素因数分解:

${\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{13681}}^1$

素因数の和:13786

約数の個数: 12

約数和(自身を含む): 302426928

約数和(自身を除く): 21706489

約数列:

[1, 17, 71, 289, 1207, 13681, 20519, 232577, 971351, 3953809, 16512967, 280720439]

約数ペア:

[(1, 280720439), (17, 16512967), (71, 3953809), (289, 971351), (1207, 232577), (13681, 20519)]