20781567382002

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1423}}^1\times {\mathrm{1447}}^1\times {\mathrm{5861}}^1$

素因数の和:8784

約数の個数: 128

約数和(自身を含む): 48735439699968

約数和(自身を除く): 27953872317966

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 246, 287, 574, 861, 1423, 1447, 1722, 2846, 2894, 4269, 4341, 5861, 8538, 8682, 9961, 10129, 11722, 17583, 19922, 20258, 29883, 30387, 35166, 41027, 58343, 59327, 59766, 60774, 82054, 116686, 118654, 123081, 175029, 177981, 240301, 246162, 350058, 355962, 408401, 415289, 480602, 720903, 816802, 830578, 1225203, 1245867, 1441806, 1682107, 2059081, 2450406, 2491734, 3364214, 4118162, 5046321, 6177243, 8340203, 8480867, 10092642, 12354486, 14413567, 16680406, 16961734, 25020609, 25442601, 28827134, 43240701, 50041218, 50885202, 58381421, 59366069, 84422321, 86481402, 116762842, 118732138, 168844642, 175144263, 178098207, 253266963, 341948323, 347715547, 350288526, 356196414, 506533926, 590956247, 683896646, 695431094, 1025844969, 1043146641, 1181912494, 1772868741, 2051689938, 2086293282, 2393638261, 2434008829, 3545737482, 4787276522, 4868017658, 7180914783, 7302026487, 12068273741, 14361829566, 14604052974, 24136547482, 36204821223, 72409642446, 84477916187, 168955832374, 253433748561, 494799223381, 506867497122, 989598446762, 1484397670143, 2968795340286, 3463594563667, 6927189127334, 10390783691001, 20781567382002]

約数ペア:

[(1, 20781567382002), (2, 10390783691001), (3, 6927189127334), (6, 3463594563667), (7, 2968795340286), (14, 1484397670143), (21, 989598446762), (41, 506867497122), (42, 494799223381), (82, 253433748561), (123, 168955832374), (246, 84477916187), (287, 72409642446), (574, 36204821223), (861, 24136547482), (1423, 14604052974), (1447, 14361829566), (1722, 12068273741), (2846, 7302026487), (2894, 7180914783), (4269, 4868017658), (4341, 4787276522), (5861, 3545737482), (8538, 2434008829), (8682, 2393638261), (9961, 2086293282), (10129, 2051689938), (11722, 1772868741), (17583, 1181912494), (19922, 1043146641), (20258, 1025844969), (29883, 695431094), (30387, 683896646), (35166, 590956247), (41027, 506533926), (58343, 356196414), (59327, 350288526), (59766, 347715547), (60774, 341948323), (82054, 253266963), (116686, 178098207), (118654, 175144263), (123081, 168844642), (175029, 118732138), (177981, 116762842), (240301, 86481402), (246162, 84422321), (350058, 59366069), (355962, 58381421), (408401, 50885202), (415289, 50041218), (480602, 43240701), (720903, 28827134), (816802, 25442601), (830578, 25020609), (1225203, 16961734), (1245867, 16680406), (1441806, 14413567), (1682107, 12354486), (2059081, 10092642), (2450406, 8480867), (2491734, 8340203), (3364214, 6177243), (4118162, 5046321)]