5481640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3241

約数の個数: 32

約数和(自身を含む): 12624480

約数和(自身を除く): 7142840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 3187, 6374, 12748, 15935, 25496, 31870, 63740, 127480, 137041, 274082, 548164, 685205, 1096328, 1370410, 2740820, 5481640]

約数ペア:

[(1, 5481640), (2, 2740820), (4, 1370410), (5, 1096328), (8, 685205), (10, 548164), (20, 274082), (40, 137041), (43, 127480), (86, 63740), (172, 31870), (215, 25496), (344, 15935), (430, 12748), (860, 6374), (1720, 3187)]