329440520

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{41387}}^1$

素因数の和:41597

約数の個数: 32

約数和(自身を含む): 744984000

約数和(自身を除く): 415543480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 41387, 82774, 165548, 206935, 331096, 413870, 827740, 1655480, 8236013, 16472026, 32944052, 41180065, 65888104, 82360130, 164720260, 329440520]

約数ペア:

[(1, 329440520), (2, 164720260), (4, 82360130), (5, 65888104), (8, 41180065), (10, 32944052), (20, 16472026), (40, 8236013), (199, 1655480), (398, 827740), (796, 413870), (995, 331096), (1592, 206935), (1990, 165548), (3980, 82774), (7960, 41387)]