641078386

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{239387}}^1$

素因数の和:239505

約数の個数: 16

約数和(自身を含む): 1045646784

約数和(自身を除く): 404568398

約数列:

[1, 2, 13, 26, 103, 206, 1339, 2678, 239387, 478774, 3112031, 6224062, 24656861, 49313722, 320539193, 641078386]

約数ペア:

[(1, 641078386), (2, 320539193), (13, 49313722), (26, 24656861), (103, 6224062), (206, 3112031), (1339, 478774), (2678, 239387)]