20091721180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2297}}^1\times {\mathrm{10667}}^1$

素因数の和:13014

約数の個数: 48

約数和(自身を含む): 43244572896

約数和(自身を除く): 23152851716

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2297, 4594, 9188, 10667, 11485, 21334, 22970, 42668, 45940, 53335, 94177, 106670, 188354, 213340, 376708, 437347, 470885, 874694, 941770, 1749388, 1883540, 2186735, 4373470, 8746940, 24502099, 49004198, 98008396, 122510495, 245020990, 490041980, 1004586059, 2009172118, 4018344236, 5022930295, 10045860590, 20091721180]

約数ペア:

[(1, 20091721180), (2, 10045860590), (4, 5022930295), (5, 4018344236), (10, 2009172118), (20, 1004586059), (41, 490041980), (82, 245020990), (164, 122510495), (205, 98008396), (410, 49004198), (820, 24502099), (2297, 8746940), (4594, 4373470), (9188, 2186735), (10667, 1883540), (11485, 1749388), (21334, 941770), (22970, 874694), (42668, 470885), (45940, 437347), (53335, 376708), (94177, 213340), (106670, 188354)]