244540040

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{31033}}^1$

素因数の和:31241

約数の個数: 32

約数和(自身を含む): 553025880

約数和(自身を除く): 308485840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 31033, 62066, 124132, 155165, 248264, 310330, 620660, 1241320, 6113501, 12227002, 24454004, 30567505, 48908008, 61135010, 122270020, 244540040]

約数ペア:

[(1, 244540040), (2, 122270020), (4, 61135010), (5, 48908008), (8, 30567505), (10, 24454004), (20, 12227002), (40, 6113501), (197, 1241320), (394, 620660), (788, 310330), (985, 248264), (1576, 155165), (1970, 124132), (3940, 62066), (7880, 31033)]