19503940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22679}}^1$

素因数の和:22731

約数の個数: 24

約数和(自身を含む): 41912640

約数和(自身を除く): 22408700

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22679, 45358, 90716, 113395, 226790, 453580, 975197, 1950394, 3900788, 4875985, 9751970, 19503940]

約数ペア:

[(1, 19503940), (2, 9751970), (4, 4875985), (5, 3900788), (10, 1950394), (20, 975197), (43, 453580), (86, 226790), (172, 113395), (215, 90716), (430, 45358), (860, 22679)]