2681480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1559}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 6177600

約数和(自身を除く): 3496120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1559, 1720, 3118, 6236, 7795, 12472, 15590, 31180, 62360, 67037, 134074, 268148, 335185, 536296, 670370, 1340740, 2681480]

約数ペア:

[(1, 2681480), (2, 1340740), (4, 670370), (5, 536296), (8, 335185), (10, 268148), (20, 134074), (40, 67037), (43, 62360), (86, 31180), (172, 15590), (215, 12472), (344, 7795), (430, 6236), (860, 3118), (1559, 1720)]