272620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 587664

約数和(自身を除く): 315044

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 317, 430, 634, 860, 1268, 1585, 3170, 6340, 13631, 27262, 54524, 68155, 136310, 272620]

約数ペア:

[(1, 272620), (2, 136310), (4, 68155), (5, 54524), (10, 27262), (20, 13631), (43, 6340), (86, 3170), (172, 1585), (215, 1268), (317, 860), (430, 634)]