20350180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23663}}^1$

素因数の和:23715

約数の個数: 24

約数和(自身を含む): 43731072

約数和(自身を除く): 23380892

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23663, 47326, 94652, 118315, 236630, 473260, 1017509, 2035018, 4070036, 5087545, 10175090, 20350180]

約数ペア:

[(1, 20350180), (2, 10175090), (4, 5087545), (5, 4070036), (10, 2035018), (20, 1017509), (43, 473260), (86, 236630), (172, 118315), (215, 94652), (430, 47326), (860, 23663)]