148420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:231

約数の個数: 24

約数和(自身を含む): 321048

約数和(自身を除く): 172628

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 205, 362, 410, 724, 820, 905, 1810, 3620, 7421, 14842, 29684, 37105, 74210, 148420]

約数ペア:

[(1, 148420), (2, 74210), (4, 37105), (5, 29684), (10, 14842), (20, 7421), (41, 3620), (82, 1810), (164, 905), (181, 820), (205, 724), (362, 410)]