254488540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{64591}}^1$

素因数の和:64797

約数の個数: 24

約数和(自身を含む): 537147072

約数和(自身を除く): 282658532

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 64591, 129182, 258364, 322955, 645910, 1291820, 12724427, 25448854, 50897708, 63622135, 127244270, 254488540]

約数ペア:

[(1, 254488540), (2, 127244270), (4, 63622135), (5, 50897708), (10, 25448854), (20, 12724427), (197, 1291820), (394, 645910), (788, 322955), (985, 258364), (1970, 129182), (3940, 64591)]