68420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{311}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 157248

約数和(自身を除く): 88828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 311, 622, 1244, 1555, 3110, 3421, 6220, 6842, 13684, 17105, 34210, 68420]

約数ペア:

[(1, 68420), (2, 34210), (4, 17105), (5, 13684), (10, 6842), (11, 6220), (20, 3421), (22, 3110), (44, 1555), (55, 1244), (110, 622), (220, 311)]