208481710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{72139}}^1$

素因数の和:72180

約数の個数: 24

約数和(自身を含む): 398645640

約数和(自身を除く): 190163930

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 72139, 144278, 360695, 721390, 1226363, 2452726, 6131815, 12263630, 20848171, 41696342, 104240855, 208481710]

約数ペア:

[(1, 208481710), (2, 104240855), (5, 41696342), (10, 20848171), (17, 12263630), (34, 6131815), (85, 2452726), (170, 1226363), (289, 721390), (578, 360695), (1445, 144278), (2890, 72139)]