388587020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{641}}^1\times {\mathrm{1783}}^1$

素因数の和:2450

約数の個数: 48

約数和(自身を含む): 865867968

約数和(自身を除く): 477280948

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 641, 1282, 1783, 2564, 3205, 3566, 6410, 7132, 8915, 10897, 12820, 17830, 21794, 30311, 35660, 43588, 54485, 60622, 108970, 121244, 151555, 217940, 303110, 606220, 1142903, 2285806, 4571612, 5714515, 11429030, 19429351, 22858060, 38858702, 77717404, 97146755, 194293510, 388587020]

約数ペア:

[(1, 388587020), (2, 194293510), (4, 97146755), (5, 77717404), (10, 38858702), (17, 22858060), (20, 19429351), (34, 11429030), (68, 5714515), (85, 4571612), (170, 2285806), (340, 1142903), (641, 606220), (1282, 303110), (1783, 217940), (2564, 151555), (3205, 121244), (3566, 108970), (6410, 60622), (7132, 54485), (8915, 43588), (10897, 35660), (12820, 30311), (17830, 21794)]