257042688

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{349}}^1$

素因数の和:512

約数の個数: 144

約数和(自身を含む): 789801600

約数和(自身を除く): 532758912

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 137, 168, 192, 224, 256, 274, 336, 349, 384, 411, 448, 548, 672, 698, 768, 822, 896, 959, 1047, 1096, 1344, 1396, 1644, 1792, 1918, 2094, 2192, 2443, 2688, 2792, 2877, 3288, 3836, 4188, 4384, 4886, 5376, 5584, 5754, 6576, 7329, 7672, 8376, 8768, 9772, 11168, 11508, 13152, 14658, 15344, 16752, 17536, 19544, 22336, 23016, 26304, 29316, 30688, 33504, 35072, 39088, 44672, 46032, 47813, 52608, 58632, 61376, 67008, 78176, 89344, 92064, 95626, 105216, 117264, 122752, 134016, 143439, 156352, 184128, 191252, 234528, 245504, 268032, 286878, 312704, 334691, 368256, 382504, 469056, 573756, 625408, 669382, 736512, 765008, 938112, 1004073, 1147512, 1338764, 1530016, 1876224, 2008146, 2295024, 2677528, 3060032, 4016292, 4590048, 5355056, 6120064, 8032584, 9180096, 10710112, 12240128, 16065168, 18360192, 21420224, 32130336, 36720384, 42840448, 64260672, 85680896, 128521344, 257042688]

約数ペア:

[(1, 257042688), (2, 128521344), (3, 85680896), (4, 64260672), (6, 42840448), (7, 36720384), (8, 32130336), (12, 21420224), (14, 18360192), (16, 16065168), (21, 12240128), (24, 10710112), (28, 9180096), (32, 8032584), (42, 6120064), (48, 5355056), (56, 4590048), (64, 4016292), (84, 3060032), (96, 2677528), (112, 2295024), (128, 2008146), (137, 1876224), (168, 1530016), (192, 1338764), (224, 1147512), (256, 1004073), (274, 938112), (336, 765008), (349, 736512), (384, 669382), (411, 625408), (448, 573756), (548, 469056), (672, 382504), (698, 368256), (768, 334691), (822, 312704), (896, 286878), (959, 268032), (1047, 245504), (1096, 234528), (1344, 191252), (1396, 184128), (1644, 156352), (1792, 143439), (1918, 134016), (2094, 122752), (2192, 117264), (2443, 105216), (2688, 95626), (2792, 92064), (2877, 89344), (3288, 78176), (3836, 67008), (4188, 61376), (4384, 58632), (4886, 52608), (5376, 47813), (5584, 46032), (5754, 44672), (6576, 39088), (7329, 35072), (7672, 33504), (8376, 30688), (8768, 29316), (9772, 26304), (11168, 23016), (11508, 22336), (13152, 19544), (14658, 17536), (15344, 16752)]