28472020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{33107}}^1$

素因数の和:33159

約数の個数: 24

約数和(自身を含む): 61183584

約数和(自身を除く): 32711564

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 33107, 66214, 132428, 165535, 331070, 662140, 1423601, 2847202, 5694404, 7118005, 14236010, 28472020]

約数ペア:

[(1, 28472020), (2, 14236010), (4, 7118005), (5, 5694404), (10, 2847202), (20, 1423601), (43, 662140), (86, 331070), (172, 165535), (215, 132428), (430, 66214), (860, 33107)]