20968900

素因数分解:

$2^2\times 5^2\times {\mathrm{277}}^1\times {\mathrm{757}}^1$

素因数の和:1048

約数の個数: 36

約数和(自身を含む): 45727108

約数和(自身を除く): 24758208

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 277, 554, 757, 1108, 1385, 1514, 2770, 3028, 3785, 5540, 6925, 7570, 13850, 15140, 18925, 27700, 37850, 75700, 209689, 419378, 838756, 1048445, 2096890, 4193780, 5242225, 10484450, 20968900]

約数ペア:

[(1, 20968900), (2, 10484450), (4, 5242225), (5, 4193780), (10, 2096890), (20, 1048445), (25, 838756), (50, 419378), (100, 209689), (277, 75700), (554, 37850), (757, 27700), (1108, 18925), (1385, 15140), (1514, 13850), (2770, 7570), (3028, 6925), (3785, 5540)]