12784760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7433}}^1$

素因数の和:7487

約数の個数: 32

約数和(自身を含む): 29438640

約数和(自身を除く): 16653880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7433, 14866, 29732, 37165, 59464, 74330, 148660, 297320, 319619, 639238, 1278476, 1598095, 2556952, 3196190, 6392380, 12784760]

約数ペア:

[(1, 12784760), (2, 6392380), (4, 3196190), (5, 2556952), (8, 1598095), (10, 1278476), (20, 639238), (40, 319619), (43, 297320), (86, 148660), (172, 74330), (215, 59464), (344, 37165), (430, 29732), (860, 14866), (1720, 7433)]