30916720

素因数分解:

$2^4\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1733}}^1$

素因数の和:1969

約数の個数: 40

約数和(自身を含む): 72245376

約数和(自身を除く): 41328656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 223, 446, 892, 1115, 1733, 1784, 2230, 3466, 3568, 4460, 6932, 8665, 8920, 13864, 17330, 17840, 27728, 34660, 69320, 138640, 386459, 772918, 1545836, 1932295, 3091672, 3864590, 6183344, 7729180, 15458360, 30916720]

約数ペア:

[(1, 30916720), (2, 15458360), (4, 7729180), (5, 6183344), (8, 3864590), (10, 3091672), (16, 1932295), (20, 1545836), (40, 772918), (80, 386459), (223, 138640), (446, 69320), (892, 34660), (1115, 27728), (1733, 17840), (1784, 17330), (2230, 13864), (3466, 8920), (3568, 8665), (4460, 6932)]