71379260

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{209939}}^1$

素因数の和:209965

約数の個数: 24

約数和(自身を含む): 158714640

約数和(自身を除く): 87335380

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 209939, 419878, 839756, 1049695, 2099390, 3568963, 4198780, 7137926, 14275852, 17844815, 35689630, 71379260]

約数ペア:

[(1, 71379260), (2, 35689630), (4, 17844815), (5, 14275852), (10, 7137926), (17, 4198780), (20, 3568963), (34, 2099390), (68, 1049695), (85, 839756), (170, 419878), (340, 209939)]