20003380

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5077}}^1$

素因数の和:5283

約数の個数: 24

約数和(自身を含む): 42228648

約数和(自身を除く): 22225268

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 5077, 10154, 20308, 25385, 50770, 101540, 1000169, 2000338, 4000676, 5000845, 10001690, 20003380]

約数ペア:

[(1, 20003380), (2, 10001690), (4, 5000845), (5, 4000676), (10, 2000338), (20, 1000169), (197, 101540), (394, 50770), (788, 25385), (985, 20308), (1970, 10154), (3940, 5077)]