18088540

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4591}}^1$

素因数の和:4797

約数の個数: 24

約数和(自身を含む): 38187072

約数和(自身を除く): 20098532

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 4591, 9182, 18364, 22955, 45910, 91820, 904427, 1808854, 3617708, 4522135, 9044270, 18088540]

約数ペア:

[(1, 18088540), (2, 9044270), (4, 4522135), (5, 3617708), (10, 1808854), (20, 904427), (197, 91820), (394, 45910), (788, 22955), (985, 18364), (1970, 9182), (3940, 4591)]