8478880

素因数分解:

$2^5\times 5^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 20207880

約数和(自身を除く): 11729000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 197, 269, 394, 538, 788, 985, 1076, 1345, 1576, 1970, 2152, 2690, 3152, 3940, 4304, 5380, 6304, 7880, 8608, 10760, 15760, 21520, 31520, 43040, 52993, 105986, 211972, 264965, 423944, 529930, 847888, 1059860, 1695776, 2119720, 4239440, 8478880]

約数ペア:

[(1, 8478880), (2, 4239440), (4, 2119720), (5, 1695776), (8, 1059860), (10, 847888), (16, 529930), (20, 423944), (32, 264965), (40, 211972), (80, 105986), (160, 52993), (197, 43040), (269, 31520), (394, 21520), (538, 15760), (788, 10760), (985, 8608), (1076, 7880), (1345, 6304), (1576, 5380), (1970, 4304), (2152, 3940), (2690, 3152)]