208691710

素因数分解:

$2^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{81203}}^1$

素因数の和:81467

約数の個数: 16

約数和(自身を含む): 377111376

約数和(自身を除く): 168419666

約数列:

[1, 2, 5, 10, 257, 514, 1285, 2570, 81203, 162406, 406015, 812030, 20869171, 41738342, 104345855, 208691710]

約数ペア:

[(1, 208691710), (2, 104345855), (5, 41738342), (10, 20869171), (257, 812030), (514, 406015), (1285, 162406), (2570, 81203)]