20148645880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1064939}}^1$

素因数の和:1065004

約数の個数: 64

約数和(自身を含む): 50605948800

約数和(自身を除く): 30457302920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 860, 946, 1720, 1892, 2365, 3784, 4730, 9460, 18920, 1064939, 2129878, 4259756, 5324695, 8519512, 10649390, 11714329, 21298780, 23428658, 42597560, 45792377, 46857316, 58571645, 91584754, 93714632, 117143290, 183169508, 228961885, 234286580, 366339016, 457923770, 468573160, 503716147, 915847540, 1007432294, 1831695080, 2014864588, 2518580735, 4029729176, 5037161470, 10074322940, 20148645880]

約数ペア:

[(1, 20148645880), (2, 10074322940), (4, 5037161470), (5, 4029729176), (8, 2518580735), (10, 2014864588), (11, 1831695080), (20, 1007432294), (22, 915847540), (40, 503716147), (43, 468573160), (44, 457923770), (55, 366339016), (86, 234286580), (88, 228961885), (110, 183169508), (172, 117143290), (215, 93714632), (220, 91584754), (344, 58571645), (430, 46857316), (440, 45792377), (473, 42597560), (860, 23428658), (946, 21298780), (1720, 11714329), (1892, 10649390), (2365, 8519512), (3784, 5324695), (4730, 4259756), (9460, 2129878), (18920, 1064939)]