18803560

素因数分解:

$2^3\times 5^1\times {\mathrm{470089}}^1$

素因数の和:470100

約数の個数: 16

約数和(自身を含む): 42308100

約数和(自身を除く): 23504540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 470089, 940178, 1880356, 2350445, 3760712, 4700890, 9401780, 18803560]

約数ペア:

[(1, 18803560), (2, 9401780), (4, 4700890), (5, 3760712), (8, 2350445), (10, 1880356), (20, 940178), (40, 470089)]