13651640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7937}}^1$

素因数の和:7991

約数の個数: 32

約数和(自身を含む): 31434480

約数和(自身を除く): 17782840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7937, 15874, 31748, 39685, 63496, 79370, 158740, 317480, 341291, 682582, 1365164, 1706455, 2730328, 3412910, 6825820, 13651640]

約数ペア:

[(1, 13651640), (2, 6825820), (4, 3412910), (5, 2730328), (8, 1706455), (10, 1365164), (20, 682582), (40, 341291), (43, 317480), (86, 158740), (172, 79370), (215, 63496), (344, 39685), (430, 31748), (860, 15874), (1720, 7937)]