80731880

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{10567}}^1$

素因数の和:10769

約数の個数: 32

約数和(自身を含む): 182615040

約数和(自身を除く): 101883160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 10567, 21134, 42268, 52835, 84536, 105670, 211340, 422680, 2018297, 4036594, 8073188, 10091485, 16146376, 20182970, 40365940, 80731880]

約数ペア:

[(1, 80731880), (2, 40365940), (4, 20182970), (5, 16146376), (8, 10091485), (10, 8073188), (20, 4036594), (40, 2018297), (191, 422680), (382, 211340), (764, 105670), (955, 84536), (1528, 52835), (1910, 42268), (3820, 21134), (7640, 10567)]