1280640690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2851}}^1$

素因数の和:2925

約数の個数: 192

約数和(自身を含む): 4100308992

約数和(自身を除く): 2819668302

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 31, 35, 42, 45, 46, 62, 63, 69, 70, 90, 93, 105, 115, 126, 138, 155, 161, 186, 207, 210, 217, 230, 279, 310, 315, 322, 345, 414, 434, 465, 483, 558, 630, 651, 690, 713, 805, 930, 966, 1035, 1085, 1302, 1395, 1426, 1449, 1610, 1953, 2070, 2139, 2170, 2415, 2790, 2851, 2898, 3255, 3565, 3906, 4278, 4830, 4991, 5702, 6417, 6510, 7130, 7245, 8553, 9765, 9982, 10695, 12834, 14255, 14490, 14973, 17106, 19530, 19957, 21390, 24955, 25659, 28510, 29946, 32085, 39914, 42765, 44919, 49910, 51318, 59871, 64170, 65573, 74865, 85530, 88381, 89838, 99785, 119742, 128295, 131146, 149730, 176762, 179613, 196719, 199570, 224595, 256590, 265143, 299355, 327865, 359226, 393438, 441905, 449190, 459011, 530286, 590157, 598710, 618667, 655730, 795429, 883810, 898065, 918022, 983595, 1180314, 1237334, 1325715, 1377033, 1590858, 1796130, 1856001, 1967190, 2032763, 2295055, 2651430, 2754066, 2950785, 3093335, 3712002, 3977145, 4065526, 4131099, 4590110, 5568003, 5901570, 6098289, 6186670, 6885165, 7954290, 8262198, 9280005, 10163815, 11136006, 12196578, 13770330, 14229341, 18294867, 18560010, 20327630, 20655495, 27840015, 28458682, 30491445, 36589734, 41310990, 42688023, 55680030, 60982890, 71146705, 85376046, 91474335, 128064069, 142293410, 182948670, 213440115, 256128138, 426880230, 640320345, 1280640690]

約数ペア:

[(1, 1280640690), (2, 640320345), (3, 426880230), (5, 256128138), (6, 213440115), (7, 182948670), (9, 142293410), (10, 128064069), (14, 91474335), (15, 85376046), (18, 71146705), (21, 60982890), (23, 55680030), (30, 42688023), (31, 41310990), (35, 36589734), (42, 30491445), (45, 28458682), (46, 27840015), (62, 20655495), (63, 20327630), (69, 18560010), (70, 18294867), (90, 14229341), (93, 13770330), (105, 12196578), (115, 11136006), (126, 10163815), (138, 9280005), (155, 8262198), (161, 7954290), (186, 6885165), (207, 6186670), (210, 6098289), (217, 5901570), (230, 5568003), (279, 4590110), (310, 4131099), (315, 4065526), (322, 3977145), (345, 3712002), (414, 3093335), (434, 2950785), (465, 2754066), (483, 2651430), (558, 2295055), (630, 2032763), (651, 1967190), (690, 1856001), (713, 1796130), (805, 1590858), (930, 1377033), (966, 1325715), (1035, 1237334), (1085, 1180314), (1302, 983595), (1395, 918022), (1426, 898065), (1449, 883810), (1610, 795429), (1953, 655730), (2070, 618667), (2139, 598710), (2170, 590157), (2415, 530286), (2790, 459011), (2851, 449190), (2898, 441905), (3255, 393438), (3565, 359226), (3906, 327865), (4278, 299355), (4830, 265143), (4991, 256590), (5702, 224595), (6417, 199570), (6510, 196719), (7130, 179613), (7245, 176762), (8553, 149730), (9765, 131146), (9982, 128295), (10695, 119742), (12834, 99785), (14255, 89838), (14490, 88381), (14973, 85530), (17106, 74865), (19530, 65573), (19957, 64170), (21390, 59871), (24955, 51318), (25659, 49910), (28510, 44919), (29946, 42765), (32085, 39914)]