199770260

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{1559}}^1$

素因数の和:1760

約数の個数: 48

約数和(自身を含む): 432432000

約数和(自身を除く): 232661740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 149, 172, 215, 298, 430, 596, 745, 860, 1490, 1559, 2980, 3118, 6236, 6407, 7795, 12814, 15590, 25628, 31180, 32035, 64070, 67037, 128140, 134074, 232291, 268148, 335185, 464582, 670370, 929164, 1161455, 1340740, 2322910, 4645820, 9988513, 19977026, 39954052, 49942565, 99885130, 199770260]

約数ペア:

[(1, 199770260), (2, 99885130), (4, 49942565), (5, 39954052), (10, 19977026), (20, 9988513), (43, 4645820), (86, 2322910), (149, 1340740), (172, 1161455), (215, 929164), (298, 670370), (430, 464582), (596, 335185), (745, 268148), (860, 232291), (1490, 134074), (1559, 128140), (2980, 67037), (3118, 64070), (6236, 32035), (6407, 31180), (7795, 25628), (12814, 15590)]