1321385640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1\times {\mathrm{281}}^1$

素因数の和:707

約数の個数: 128

約数和(自身を含む): 4020192000

約数和(自身を除く): 2698806360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 149, 263, 281, 298, 447, 526, 562, 596, 745, 789, 843, 894, 1052, 1124, 1192, 1315, 1405, 1490, 1578, 1686, 1788, 2104, 2235, 2248, 2630, 2810, 2980, 3156, 3372, 3576, 3945, 4215, 4470, 5260, 5620, 5960, 6312, 6744, 7890, 8430, 8940, 10520, 11240, 15780, 16860, 17880, 31560, 33720, 39187, 41869, 73903, 78374, 83738, 117561, 125607, 147806, 156748, 167476, 195935, 209345, 221709, 235122, 251214, 295612, 313496, 334952, 369515, 391870, 418690, 443418, 470244, 502428, 587805, 591224, 628035, 739030, 783740, 837380, 886836, 940488, 1004856, 1108545, 1175610, 1256070, 1478060, 1567480, 1674760, 1773672, 2217090, 2351220, 2512140, 2956120, 4434180, 4702440, 5024280, 8868360, 11011547, 22023094, 33034641, 44046188, 55057735, 66069282, 88092376, 110115470, 132138564, 165173205, 220230940, 264277128, 330346410, 440461880, 660692820, 1321385640]

約数ペア:

[(1, 1321385640), (2, 660692820), (3, 440461880), (4, 330346410), (5, 264277128), (6, 220230940), (8, 165173205), (10, 132138564), (12, 110115470), (15, 88092376), (20, 66069282), (24, 55057735), (30, 44046188), (40, 33034641), (60, 22023094), (120, 11011547), (149, 8868360), (263, 5024280), (281, 4702440), (298, 4434180), (447, 2956120), (526, 2512140), (562, 2351220), (596, 2217090), (745, 1773672), (789, 1674760), (843, 1567480), (894, 1478060), (1052, 1256070), (1124, 1175610), (1192, 1108545), (1315, 1004856), (1405, 940488), (1490, 886836), (1578, 837380), (1686, 783740), (1788, 739030), (2104, 628035), (2235, 591224), (2248, 587805), (2630, 502428), (2810, 470244), (2980, 443418), (3156, 418690), (3372, 391870), (3576, 369515), (3945, 334952), (4215, 313496), (4470, 295612), (5260, 251214), (5620, 235122), (5960, 221709), (6312, 209345), (6744, 195935), (7890, 167476), (8430, 156748), (8940, 147806), (10520, 125607), (11240, 117561), (15780, 83738), (16860, 78374), (17880, 73903), (31560, 41869), (33720, 39187)]