261661680

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:488

約数の個数: 240

約数和(自身を含む): 1013238720

約数和(自身を除く): 751577040

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, 140, 144, 168, 180, 193, 210, 240, 252, 269, 280, 315, 336, 360, 386, 420, 504, 538, 560, 579, 630, 720, 772, 807, 840, 965, 1008, 1076, 1158, 1260, 1345, 1351, 1544, 1614, 1680, 1737, 1883, 1930, 2152, 2316, 2421, 2520, 2690, 2702, 2895, 3088, 3228, 3474, 3766, 3860, 4035, 4053, 4304, 4632, 4842, 5040, 5380, 5404, 5649, 5790, 6456, 6755, 6948, 7532, 7720, 8070, 8106, 8685, 9264, 9415, 9684, 10760, 10808, 11298, 11580, 12105, 12159, 12912, 13510, 13896, 15064, 15440, 16140, 16212, 16947, 17370, 18830, 19368, 20265, 21520, 21616, 22596, 23160, 24210, 24318, 27020, 27792, 28245, 30128, 32280, 32424, 33894, 34740, 37660, 38736, 40530, 45192, 46320, 48420, 48636, 51917, 54040, 56490, 60795, 64560, 64848, 67788, 69480, 75320, 81060, 84735, 90384, 96840, 97272, 103834, 108080, 112980, 121590, 135576, 138960, 150640, 155751, 162120, 169470, 193680, 194544, 207668, 225960, 243180, 259585, 271152, 311502, 324240, 338940, 363419, 415336, 451920, 467253, 486360, 519170, 623004, 677880, 726838, 778755, 830672, 934506, 972720, 1038340, 1090257, 1246008, 1355760, 1453676, 1557510, 1817095, 1869012, 2076680, 2180514, 2336265, 2492016, 2907352, 3115020, 3270771, 3634190, 3738024, 4153360, 4361028, 4672530, 5451285, 5814704, 6230040, 6541542, 7268380, 7476048, 8722056, 9345060, 10902570, 12460080, 13083084, 14536760, 16353855, 17444112, 18690120, 21805140, 26166168, 29073520, 32707710, 37380240, 43610280, 52332336, 65415420, 87220560, 130830840, 261661680]

約数ペア:

[(1, 261661680), (2, 130830840), (3, 87220560), (4, 65415420), (5, 52332336), (6, 43610280), (7, 37380240), (8, 32707710), (9, 29073520), (10, 26166168), (12, 21805140), (14, 18690120), (15, 17444112), (16, 16353855), (18, 14536760), (20, 13083084), (21, 12460080), (24, 10902570), (28, 9345060), (30, 8722056), (35, 7476048), (36, 7268380), (40, 6541542), (42, 6230040), (45, 5814704), (48, 5451285), (56, 4672530), (60, 4361028), (63, 4153360), (70, 3738024), (72, 3634190), (80, 3270771), (84, 3115020), (90, 2907352), (105, 2492016), (112, 2336265), (120, 2180514), (126, 2076680), (140, 1869012), (144, 1817095), (168, 1557510), (180, 1453676), (193, 1355760), (210, 1246008), (240, 1090257), (252, 1038340), (269, 972720), (280, 934506), (315, 830672), (336, 778755), (360, 726838), (386, 677880), (420, 623004), (504, 519170), (538, 486360), (560, 467253), (579, 451920), (630, 415336), (720, 363419), (772, 338940), (807, 324240), (840, 311502), (965, 271152), (1008, 259585), (1076, 243180), (1158, 225960), (1260, 207668), (1345, 194544), (1351, 193680), (1544, 169470), (1614, 162120), (1680, 155751), (1737, 150640), (1883, 138960), (1930, 135576), (2152, 121590), (2316, 112980), (2421, 108080), (2520, 103834), (2690, 97272), (2702, 96840), (2895, 90384), (3088, 84735), (3228, 81060), (3474, 75320), (3766, 69480), (3860, 67788), (4035, 64848), (4053, 64560), (4304, 60795), (4632, 56490), (4842, 54040), (5040, 51917), (5380, 48636), (5404, 48420), (5649, 46320), (5790, 45192), (6456, 40530), (6755, 38736), (6948, 37660), (7532, 34740), (7720, 33894), (8070, 32424), (8106, 32280), (8685, 30128), (9264, 28245), (9415, 27792), (9684, 27020), (10760, 24318), (10808, 24210), (11298, 23160), (11580, 22596), (12105, 21616), (12159, 21520), (12912, 20265), (13510, 19368), (13896, 18830), (15064, 17370), (15440, 16947), (16140, 16212)]