86989340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{255851}}^1$

素因数の和:255877

約数の個数: 24

約数和(自身を含む): 193424112

約数和(自身を除く): 106434772

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 255851, 511702, 1023404, 1279255, 2558510, 4349467, 5117020, 8698934, 17397868, 21747335, 43494670, 86989340]

約数ペア:

[(1, 86989340), (2, 43494670), (4, 21747335), (5, 17397868), (10, 8698934), (17, 5117020), (20, 4349467), (34, 2558510), (68, 1279255), (85, 1023404), (170, 511702), (340, 255851)]