290386945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{20959}}^1$

素因数の和:21144

約数の個数: 16

約数和(自身を含む): 371243520

約数和(自身を除く): 80856575

約数列:

[1, 5, 17, 85, 163, 815, 2771, 13855, 20959, 104795, 356303, 1781515, 3416317, 17081585, 58077389, 290386945]

約数ペア:

[(1, 290386945), (5, 58077389), (17, 17081585), (85, 3416317), (163, 1781515), (815, 356303), (2771, 104795), (13855, 20959)]