342280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 792000

約数和(自身を除く): 449720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 199, 215, 344, 398, 430, 796, 860, 995, 1592, 1720, 1990, 3980, 7960, 8557, 17114, 34228, 42785, 68456, 85570, 171140, 342280]

約数ペア:

[(1, 342280), (2, 171140), (4, 85570), (5, 68456), (8, 42785), (10, 34228), (20, 17114), (40, 8557), (43, 7960), (86, 3980), (172, 1990), (199, 1720), (215, 1592), (344, 995), (398, 860), (430, 796)]