18285320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10631}}^1$

素因数の和:10685

約数の個数: 32

約数和(自身を含む): 42102720

約数和(自身を除く): 23817400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 10631, 21262, 42524, 53155, 85048, 106310, 212620, 425240, 457133, 914266, 1828532, 2285665, 3657064, 4571330, 9142660, 18285320]

約数ペア:

[(1, 18285320), (2, 9142660), (4, 4571330), (5, 3657064), (8, 2285665), (10, 1828532), (20, 914266), (40, 457133), (43, 425240), (86, 212620), (172, 106310), (215, 85048), (344, 53155), (430, 42524), (860, 21262), (1720, 10631)]