20292440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^2\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 54946080

約数和(自身を除く): 34653640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 137, 140, 161, 184, 230, 274, 280, 322, 460, 529, 548, 644, 685, 805, 920, 959, 1058, 1096, 1288, 1370, 1610, 1918, 2116, 2645, 2740, 3151, 3220, 3703, 3836, 4232, 4795, 5290, 5480, 6302, 6440, 7406, 7672, 9590, 10580, 12604, 14812, 15755, 18515, 19180, 21160, 22057, 25208, 29624, 31510, 37030, 38360, 44114, 63020, 72473, 74060, 88228, 110285, 126040, 144946, 148120, 176456, 220570, 289892, 362365, 441140, 507311, 579784, 724730, 882280, 1014622, 1449460, 2029244, 2536555, 2898920, 4058488, 5073110, 10146220, 20292440]

約数ペア:

[(1, 20292440), (2, 10146220), (4, 5073110), (5, 4058488), (7, 2898920), (8, 2536555), (10, 2029244), (14, 1449460), (20, 1014622), (23, 882280), (28, 724730), (35, 579784), (40, 507311), (46, 441140), (56, 362365), (70, 289892), (92, 220570), (115, 176456), (137, 148120), (140, 144946), (161, 126040), (184, 110285), (230, 88228), (274, 74060), (280, 72473), (322, 63020), (460, 44114), (529, 38360), (548, 37030), (644, 31510), (685, 29624), (805, 25208), (920, 22057), (959, 21160), (1058, 19180), (1096, 18515), (1288, 15755), (1370, 14812), (1610, 12604), (1918, 10580), (2116, 9590), (2645, 7672), (2740, 7406), (3151, 6440), (3220, 6302), (3703, 5480), (3836, 5290), (4232, 4795)]