21197200

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:484

約数の個数: 60

約数和(自身を含む): 51375060

約数和(自身を除く): 30177860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 200, 269, 394, 400, 538, 788, 985, 1076, 1345, 1576, 1970, 2152, 2690, 3152, 3940, 4304, 4925, 5380, 6725, 7880, 9850, 10760, 13450, 15760, 19700, 21520, 26900, 39400, 52993, 53800, 78800, 105986, 107600, 211972, 264965, 423944, 529930, 847888, 1059860, 1324825, 2119720, 2649650, 4239440, 5299300, 10598600, 21197200]

約数ペア:

[(1, 21197200), (2, 10598600), (4, 5299300), (5, 4239440), (8, 2649650), (10, 2119720), (16, 1324825), (20, 1059860), (25, 847888), (40, 529930), (50, 423944), (80, 264965), (100, 211972), (197, 107600), (200, 105986), (269, 78800), (394, 53800), (400, 52993), (538, 39400), (788, 26900), (985, 21520), (1076, 19700), (1345, 15760), (1576, 13450), (1970, 10760), (2152, 9850), (2690, 7880), (3152, 6725), (3940, 5380), (4304, 4925)]