18809948720

素因数分解:

$2^4\times 5^1\times {\mathrm{2237}}^1\times {\mathrm{105107}}^1$

素因数の和:107357

約数の個数: 40

約数和(自身を含む): 43753096944

約数和(自身を除く): 24943148224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2237, 4474, 8948, 11185, 17896, 22370, 35792, 44740, 89480, 105107, 178960, 210214, 420428, 525535, 840856, 1051070, 1681712, 2102140, 4204280, 8408560, 235124359, 470248718, 940497436, 1175621795, 1880994872, 2351243590, 3761989744, 4702487180, 9404974360, 18809948720]

約数ペア:

[(1, 18809948720), (2, 9404974360), (4, 4702487180), (5, 3761989744), (8, 2351243590), (10, 1880994872), (16, 1175621795), (20, 940497436), (40, 470248718), (80, 235124359), (2237, 8408560), (4474, 4204280), (8948, 2102140), (11185, 1681712), (17896, 1051070), (22370, 840856), (35792, 525535), (44740, 420428), (89480, 210214), (105107, 178960)]