8140040

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1033}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 18425880

約数和(自身を除く): 10285840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1033, 1576, 1970, 2066, 3940, 4132, 5165, 7880, 8264, 10330, 20660, 41320, 203501, 407002, 814004, 1017505, 1628008, 2035010, 4070020, 8140040]

約数ペア:

[(1, 8140040), (2, 4070020), (4, 2035010), (5, 1628008), (8, 1017505), (10, 814004), (20, 407002), (40, 203501), (197, 41320), (394, 20660), (788, 10330), (985, 8264), (1033, 7880), (1576, 5165), (1970, 4132), (2066, 3940)]