257446560

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:615

約数の個数: 192

約数和(自身を含む): 933956352

約数和(自身を除く): 676509792

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 193, 210, 224, 240, 280, 336, 386, 397, 420, 480, 560, 579, 672, 772, 794, 840, 965, 1120, 1158, 1191, 1351, 1544, 1588, 1680, 1930, 1985, 2316, 2382, 2702, 2779, 2895, 3088, 3176, 3360, 3860, 3970, 4053, 4632, 4764, 5404, 5558, 5790, 5955, 6176, 6352, 6755, 7720, 7940, 8106, 8337, 9264, 9528, 10808, 11116, 11580, 11910, 12704, 13510, 13895, 15440, 15880, 16212, 16674, 18528, 19056, 20265, 21616, 22232, 23160, 23820, 27020, 27790, 30880, 31760, 32424, 33348, 38112, 40530, 41685, 43232, 44464, 46320, 47640, 54040, 55580, 63520, 64848, 66696, 76621, 81060, 83370, 88928, 92640, 95280, 108080, 111160, 129696, 133392, 153242, 162120, 166740, 190560, 216160, 222320, 229863, 266784, 306484, 324240, 333480, 383105, 444640, 459726, 536347, 612968, 648480, 666960, 766210, 919452, 1072694, 1149315, 1225936, 1333920, 1532420, 1609041, 1838904, 2145388, 2298630, 2451872, 2681735, 3064840, 3218082, 3677808, 4290776, 4597260, 5363470, 6129680, 6436164, 7355616, 8045205, 8581552, 9194520, 10726940, 12259360, 12872328, 16090410, 17163104, 18389040, 21453880, 25744656, 32180820, 36778080, 42907760, 51489312, 64361640, 85815520, 128723280, 257446560]

約数ペア:

[(1, 257446560), (2, 128723280), (3, 85815520), (4, 64361640), (5, 51489312), (6, 42907760), (7, 36778080), (8, 32180820), (10, 25744656), (12, 21453880), (14, 18389040), (15, 17163104), (16, 16090410), (20, 12872328), (21, 12259360), (24, 10726940), (28, 9194520), (30, 8581552), (32, 8045205), (35, 7355616), (40, 6436164), (42, 6129680), (48, 5363470), (56, 4597260), (60, 4290776), (70, 3677808), (80, 3218082), (84, 3064840), (96, 2681735), (105, 2451872), (112, 2298630), (120, 2145388), (140, 1838904), (160, 1609041), (168, 1532420), (193, 1333920), (210, 1225936), (224, 1149315), (240, 1072694), (280, 919452), (336, 766210), (386, 666960), (397, 648480), (420, 612968), (480, 536347), (560, 459726), (579, 444640), (672, 383105), (772, 333480), (794, 324240), (840, 306484), (965, 266784), (1120, 229863), (1158, 222320), (1191, 216160), (1351, 190560), (1544, 166740), (1588, 162120), (1680, 153242), (1930, 133392), (1985, 129696), (2316, 111160), (2382, 108080), (2702, 95280), (2779, 92640), (2895, 88928), (3088, 83370), (3176, 81060), (3360, 76621), (3860, 66696), (3970, 64848), (4053, 63520), (4632, 55580), (4764, 54040), (5404, 47640), (5558, 46320), (5790, 44464), (5955, 43232), (6176, 41685), (6352, 40530), (6755, 38112), (7720, 33348), (7940, 32424), (8106, 31760), (8337, 30880), (9264, 27790), (9528, 27020), (10808, 23820), (11116, 23160), (11580, 22232), (11910, 21616), (12704, 20265), (13510, 19056), (13895, 18528), (15440, 16674), (15880, 16212)]