12864740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2196

約数の個数: 48

約数和(自身を含む): 31608192

約数和(自身を除く): 18743452

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 2137, 3010, 4274, 6020, 8548, 10685, 14959, 21370, 29918, 42740, 59836, 74795, 91891, 149590, 183782, 299180, 367564, 459455, 643237, 918910, 1286474, 1837820, 2572948, 3216185, 6432370, 12864740]

約数ペア:

[(1, 12864740), (2, 6432370), (4, 3216185), (5, 2572948), (7, 1837820), (10, 1286474), (14, 918910), (20, 643237), (28, 459455), (35, 367564), (43, 299180), (70, 183782), (86, 149590), (140, 91891), (172, 74795), (215, 59836), (301, 42740), (430, 29918), (602, 21370), (860, 14959), (1204, 10685), (1505, 8548), (2137, 6020), (3010, 4274)]