20383700

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1979}}^1$

素因数の和:2096

約数の個数: 36

約数和(自身を含む): 44684640

約数和(自身を除く): 24300940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 1979, 2060, 2575, 3958, 5150, 7916, 9895, 10300, 19790, 39580, 49475, 98950, 197900, 203837, 407674, 815348, 1019185, 2038370, 4076740, 5095925, 10191850, 20383700]

約数ペア:

[(1, 20383700), (2, 10191850), (4, 5095925), (5, 4076740), (10, 2038370), (20, 1019185), (25, 815348), (50, 407674), (100, 203837), (103, 197900), (206, 98950), (412, 49475), (515, 39580), (1030, 19790), (1979, 10300), (2060, 9895), (2575, 7916), (3958, 5150)]