12805220720

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{839}}^1\times {\mathrm{1783}}^1$

素因数の和:2742

約数の個数: 80

約数和(自身を含む): 30103073280

約数和(自身を除く): 17297852560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 839, 856, 1070, 1678, 1712, 1783, 2140, 3356, 3566, 4195, 4280, 6712, 7132, 8390, 8560, 8915, 13424, 14264, 16780, 17830, 28528, 33560, 35660, 67120, 71320, 89773, 142640, 179546, 190781, 359092, 381562, 448865, 718184, 763124, 897730, 953905, 1436368, 1495937, 1526248, 1795460, 1907810, 2991874, 3052496, 3590920, 3815620, 5983748, 7181840, 7479685, 7631240, 11967496, 14959370, 15262480, 23934992, 29918740, 59837480, 119674960, 160065259, 320130518, 640261036, 800326295, 1280522072, 1600652590, 2561044144, 3201305180, 6402610360, 12805220720]

約数ペア:

[(1, 12805220720), (2, 6402610360), (4, 3201305180), (5, 2561044144), (8, 1600652590), (10, 1280522072), (16, 800326295), (20, 640261036), (40, 320130518), (80, 160065259), (107, 119674960), (214, 59837480), (428, 29918740), (535, 23934992), (839, 15262480), (856, 14959370), (1070, 11967496), (1678, 7631240), (1712, 7479685), (1783, 7181840), (2140, 5983748), (3356, 3815620), (3566, 3590920), (4195, 3052496), (4280, 2991874), (6712, 1907810), (7132, 1795460), (8390, 1526248), (8560, 1495937), (8915, 1436368), (13424, 953905), (14264, 897730), (16780, 763124), (17830, 718184), (28528, 448865), (33560, 381562), (35660, 359092), (67120, 190781), (71320, 179546), (89773, 142640)]