676820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:839

約数の個数: 24

約数和(自身を含む): 1456224

約数和(自身を除く): 779404

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 787, 860, 1574, 3148, 3935, 7870, 15740, 33841, 67682, 135364, 169205, 338410, 676820]

約数ペア:

[(1, 676820), (2, 338410), (4, 169205), (5, 135364), (10, 67682), (20, 33841), (43, 15740), (86, 7870), (172, 3935), (215, 3148), (430, 1574), (787, 860)]