165580

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 368928

約数和(自身を除く): 203348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 487, 974, 1948, 2435, 4870, 8279, 9740, 16558, 33116, 41395, 82790, 165580]

約数ペア:

[(1, 165580), (2, 82790), (4, 41395), (5, 33116), (10, 16558), (17, 9740), (20, 8279), (34, 4870), (68, 2435), (85, 1948), (170, 974), (340, 487)]