20659400

素因数分解:

$2^3\times 5^2\times {\mathrm{53}}^1\times {\mathrm{1949}}^1$

素因数の和:2018

約数の個数: 48

約数和(自身を含む): 48964500

約数和(自身を除く): 28305100

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 106, 200, 212, 265, 424, 530, 1060, 1325, 1949, 2120, 2650, 3898, 5300, 7796, 9745, 10600, 15592, 19490, 38980, 48725, 77960, 97450, 103297, 194900, 206594, 389800, 413188, 516485, 826376, 1032970, 2065940, 2582425, 4131880, 5164850, 10329700, 20659400]

約数ペア:

[(1, 20659400), (2, 10329700), (4, 5164850), (5, 4131880), (8, 2582425), (10, 2065940), (20, 1032970), (25, 826376), (40, 516485), (50, 413188), (53, 389800), (100, 206594), (106, 194900), (200, 103297), (212, 97450), (265, 77960), (424, 48725), (530, 38980), (1060, 19490), (1325, 15592), (1949, 10600), (2120, 9745), (2650, 7796), (3898, 5300)]