20869072

素因数分解:

$2^4\times 7^1\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 46425600

約数和(自身を除く): 25556528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 389, 479, 778, 958, 1556, 1916, 2723, 3112, 3353, 3832, 5446, 6224, 6706, 7664, 10892, 13412, 21784, 26824, 43568, 53648, 186331, 372662, 745324, 1304317, 1490648, 2608634, 2981296, 5217268, 10434536, 20869072]

約数ペア:

[(1, 20869072), (2, 10434536), (4, 5217268), (7, 2981296), (8, 2608634), (14, 1490648), (16, 1304317), (28, 745324), (56, 372662), (112, 186331), (389, 53648), (479, 43568), (778, 26824), (958, 21784), (1556, 13412), (1916, 10892), (2723, 7664), (3112, 6706), (3353, 6224), (3832, 5446)]