155660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 336336

約数和(自身を除く): 180676

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 181, 215, 362, 430, 724, 860, 905, 1810, 3620, 7783, 15566, 31132, 38915, 77830, 155660]

約数ペア:

[(1, 155660), (2, 77830), (4, 38915), (5, 31132), (10, 15566), (20, 7783), (43, 3620), (86, 1810), (172, 905), (181, 860), (215, 724), (362, 430)]