20485271784

素因数分解:

$2^3\times 3^1\times {\mathrm{139}}^1\times {\mathrm{1759}}^1\times {\mathrm{3491}}^1$

素因数の和:5398

約数の個数: 64

約数和(自身を含む): 51625728000

約数和(自身を除く): 31140456216

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 139, 278, 417, 556, 834, 1112, 1668, 1759, 3336, 3491, 3518, 5277, 6982, 7036, 10473, 10554, 13964, 14072, 20946, 21108, 27928, 41892, 42216, 83784, 244501, 485249, 489002, 733503, 970498, 978004, 1455747, 1467006, 1940996, 1956008, 2911494, 2934012, 3881992, 5822988, 5868024, 6140669, 11645976, 12281338, 18422007, 24562676, 36844014, 49125352, 73688028, 147376056, 853552991, 1707105982, 2560658973, 3414211964, 5121317946, 6828423928, 10242635892, 20485271784]

約数ペア:

[(1, 20485271784), (2, 10242635892), (3, 6828423928), (4, 5121317946), (6, 3414211964), (8, 2560658973), (12, 1707105982), (24, 853552991), (139, 147376056), (278, 73688028), (417, 49125352), (556, 36844014), (834, 24562676), (1112, 18422007), (1668, 12281338), (1759, 11645976), (3336, 6140669), (3491, 5868024), (3518, 5822988), (5277, 3881992), (6982, 2934012), (7036, 2911494), (10473, 1956008), (10554, 1940996), (13964, 1467006), (14072, 1455747), (20946, 978004), (21108, 970498), (27928, 733503), (41892, 489002), (42216, 485249), (83784, 244501)]