22685140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66721}}^1$

素因数の和:66747

約数の個数: 24

約数和(自身を含む): 50441832

約数和(自身を除く): 27756692

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 66721, 133442, 266884, 333605, 667210, 1134257, 1334420, 2268514, 4537028, 5671285, 11342570, 22685140]

約数ペア:

[(1, 22685140), (2, 11342570), (4, 5671285), (5, 4537028), (10, 2268514), (17, 1334420), (20, 1134257), (34, 667210), (68, 333605), (85, 266884), (170, 133442), (340, 66721)]