261691920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:542

約数の個数: 240

約数和(自身を含む): 1014399360

約数和(自身を除く): 752707440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 137, 140, 144, 168, 180, 210, 240, 252, 274, 280, 315, 336, 360, 379, 411, 420, 504, 548, 560, 630, 685, 720, 758, 822, 840, 959, 1008, 1096, 1137, 1233, 1260, 1370, 1516, 1644, 1680, 1895, 1918, 2055, 2192, 2274, 2466, 2520, 2653, 2740, 2877, 3032, 3288, 3411, 3790, 3836, 4110, 4548, 4795, 4932, 5040, 5306, 5480, 5685, 5754, 6064, 6165, 6576, 6822, 7580, 7672, 7959, 8220, 8631, 9096, 9590, 9864, 10612, 10960, 11370, 11508, 12330, 13265, 13644, 14385, 15160, 15344, 15918, 16440, 17055, 17262, 18192, 19180, 19728, 21224, 22740, 23016, 23877, 24660, 26530, 27288, 28770, 30320, 31836, 32880, 34110, 34524, 38360, 39795, 42448, 43155, 45480, 46032, 47754, 49320, 51923, 53060, 54576, 57540, 63672, 68220, 69048, 76720, 79590, 86310, 90960, 95508, 98640, 103846, 106120, 115080, 119385, 127344, 136440, 138096, 155769, 159180, 172620, 191016, 207692, 212240, 230160, 238770, 259615, 272880, 311538, 318360, 345240, 363461, 382032, 415384, 467307, 477540, 519230, 623076, 636720, 690480, 726922, 778845, 830768, 934614, 955080, 1038460, 1090383, 1246152, 1453844, 1557690, 1817305, 1869228, 1910160, 2076920, 2180766, 2336535, 2492304, 2907688, 3115380, 3271149, 3634610, 3738456, 4153840, 4361532, 4673070, 5451915, 5815376, 6230760, 6542298, 7269220, 7476912, 8723064, 9346140, 10903830, 12461520, 13084596, 14538440, 16355745, 17446128, 18692280, 21807660, 26169192, 29076880, 32711490, 37384560, 43615320, 52338384, 65422980, 87230640, 130845960, 261691920]

約数ペア:

[(1, 261691920), (2, 130845960), (3, 87230640), (4, 65422980), (5, 52338384), (6, 43615320), (7, 37384560), (8, 32711490), (9, 29076880), (10, 26169192), (12, 21807660), (14, 18692280), (15, 17446128), (16, 16355745), (18, 14538440), (20, 13084596), (21, 12461520), (24, 10903830), (28, 9346140), (30, 8723064), (35, 7476912), (36, 7269220), (40, 6542298), (42, 6230760), (45, 5815376), (48, 5451915), (56, 4673070), (60, 4361532), (63, 4153840), (70, 3738456), (72, 3634610), (80, 3271149), (84, 3115380), (90, 2907688), (105, 2492304), (112, 2336535), (120, 2180766), (126, 2076920), (137, 1910160), (140, 1869228), (144, 1817305), (168, 1557690), (180, 1453844), (210, 1246152), (240, 1090383), (252, 1038460), (274, 955080), (280, 934614), (315, 830768), (336, 778845), (360, 726922), (379, 690480), (411, 636720), (420, 623076), (504, 519230), (548, 477540), (560, 467307), (630, 415384), (685, 382032), (720, 363461), (758, 345240), (822, 318360), (840, 311538), (959, 272880), (1008, 259615), (1096, 238770), (1137, 230160), (1233, 212240), (1260, 207692), (1370, 191016), (1516, 172620), (1644, 159180), (1680, 155769), (1895, 138096), (1918, 136440), (2055, 127344), (2192, 119385), (2274, 115080), (2466, 106120), (2520, 103846), (2653, 98640), (2740, 95508), (2877, 90960), (3032, 86310), (3288, 79590), (3411, 76720), (3790, 69048), (3836, 68220), (4110, 63672), (4548, 57540), (4795, 54576), (4932, 53060), (5040, 51923), (5306, 49320), (5480, 47754), (5685, 46032), (5754, 45480), (6064, 43155), (6165, 42448), (6576, 39795), (6822, 38360), (7580, 34524), (7672, 34110), (7959, 32880), (8220, 31836), (8631, 30320), (9096, 28770), (9590, 27288), (9864, 26530), (10612, 24660), (10960, 23877), (11370, 23016), (11508, 22740), (12330, 21224), (13265, 19728), (13644, 19180), (14385, 18192), (15160, 17262), (15344, 17055), (15918, 16440)]