20749470840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2744639}}^1$

素因数の和:2744666

約数の個数: 128

約数和(自身を含む): 79045632000

約数和(自身を除く): 58296161160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 3780, 7560, 2744639, 5489278, 8233917, 10978556, 13723195, 16467834, 19212473, 21957112, 24701751, 27446390, 32935668, 38424946, 41169585, 49403502, 54892780, 57637419, 65871336, 74105253, 76849892, 82339170, 96062365, 98807004, 109785560, 115274838, 123508755, 148210506, 153699784, 164678340, 172912257, 192124730, 197614008, 230549676, 247017510, 288187095, 296421012, 329356680, 345824514, 370526265, 384249460, 461099352, 494035020, 518736771, 576374190, 592842024, 691649028, 741052530, 768498920, 864561285, 988070040, 1037473542, 1152748380, 1383298056, 1482105060, 1729122570, 2074947084, 2305496760, 2593683855, 2964210120, 3458245140, 4149894168, 5187367710, 6916490280, 10374735420, 20749470840]

約数ペア:

[(1, 20749470840), (2, 10374735420), (3, 6916490280), (4, 5187367710), (5, 4149894168), (6, 3458245140), (7, 2964210120), (8, 2593683855), (9, 2305496760), (10, 2074947084), (12, 1729122570), (14, 1482105060), (15, 1383298056), (18, 1152748380), (20, 1037473542), (21, 988070040), (24, 864561285), (27, 768498920), (28, 741052530), (30, 691649028), (35, 592842024), (36, 576374190), (40, 518736771), (42, 494035020), (45, 461099352), (54, 384249460), (56, 370526265), (60, 345824514), (63, 329356680), (70, 296421012), (72, 288187095), (84, 247017510), (90, 230549676), (105, 197614008), (108, 192124730), (120, 172912257), (126, 164678340), (135, 153699784), (140, 148210506), (168, 123508755), (180, 115274838), (189, 109785560), (210, 98807004), (216, 96062365), (252, 82339170), (270, 76849892), (280, 74105253), (315, 65871336), (360, 57637419), (378, 54892780), (420, 49403502), (504, 41169585), (540, 38424946), (630, 32935668), (756, 27446390), (840, 24701751), (945, 21957112), (1080, 19212473), (1260, 16467834), (1512, 13723195), (1890, 10978556), (2520, 8233917), (3780, 5489278), (7560, 2744639)]