20945800

素因数分解:

$2^3\times 5^2\times {\mathrm{104729}}^1$

素因数の和:104745

約数の個数: 24

約数和(自身を含む): 48699450

約数和(自身を除く): 27753650

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 104729, 209458, 418916, 523645, 837832, 1047290, 2094580, 2618225, 4189160, 5236450, 10472900, 20945800]

約数ペア:

[(1, 20945800), (2, 10472900), (4, 5236450), (5, 4189160), (8, 2618225), (10, 2094580), (20, 1047290), (25, 837832), (40, 523645), (50, 418916), (100, 209458), (200, 104729)]