256672640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:149

約数の個数: 256

約数和(自身を含む): 761425920

約数和(自身を除く): 504753280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 47, 53, 56, 64, 70, 80, 92, 94, 106, 112, 115, 128, 140, 160, 161, 184, 188, 212, 224, 230, 235, 265, 280, 320, 322, 329, 368, 371, 376, 424, 448, 460, 470, 530, 560, 640, 644, 658, 736, 742, 752, 805, 848, 896, 920, 940, 1060, 1081, 1120, 1219, 1288, 1316, 1472, 1484, 1504, 1610, 1645, 1696, 1840, 1855, 1880, 2120, 2162, 2240, 2438, 2491, 2576, 2632, 2944, 2968, 3008, 3220, 3290, 3392, 3680, 3710, 3760, 4240, 4324, 4480, 4876, 4982, 5152, 5264, 5405, 5936, 6016, 6095, 6440, 6580, 6784, 7360, 7420, 7520, 7567, 8480, 8533, 8648, 9752, 9964, 10304, 10528, 10810, 11872, 12190, 12455, 12880, 13160, 14720, 14840, 15040, 15134, 16960, 17066, 17296, 17437, 19504, 19928, 20608, 21056, 21620, 23744, 24380, 24910, 25760, 26320, 29680, 30080, 30268, 33920, 34132, 34592, 34874, 37835, 39008, 39856, 42112, 42665, 43240, 47488, 48760, 49820, 51520, 52640, 57293, 59360, 60536, 68264, 69184, 69748, 75670, 78016, 79712, 85330, 86480, 87185, 97520, 99640, 103040, 105280, 114586, 118720, 121072, 136528, 138368, 139496, 151340, 156032, 159424, 170660, 172960, 174370, 195040, 199280, 210560, 229172, 237440, 242144, 273056, 278992, 286465, 302680, 318848, 341320, 345920, 348740, 390080, 398560, 401051, 458344, 484288, 546112, 557984, 572930, 605360, 682640, 691840, 697480, 780160, 797120, 802102, 916688, 968576, 1092224, 1115968, 1145860, 1210720, 1365280, 1394960, 1594240, 1604204, 1833376, 2005255, 2231936, 2291720, 2421440, 2730560, 2789920, 3208408, 3666752, 4010510, 4583440, 4842880, 5461120, 5579840, 6416816, 7333504, 8021020, 9166880, 11159680, 12833632, 16042040, 18333760, 25667264, 32084080, 36667520, 51334528, 64168160, 128336320, 256672640]

約数ペア:

[(1, 256672640), (2, 128336320), (4, 64168160), (5, 51334528), (7, 36667520), (8, 32084080), (10, 25667264), (14, 18333760), (16, 16042040), (20, 12833632), (23, 11159680), (28, 9166880), (32, 8021020), (35, 7333504), (40, 6416816), (46, 5579840), (47, 5461120), (53, 4842880), (56, 4583440), (64, 4010510), (70, 3666752), (80, 3208408), (92, 2789920), (94, 2730560), (106, 2421440), (112, 2291720), (115, 2231936), (128, 2005255), (140, 1833376), (160, 1604204), (161, 1594240), (184, 1394960), (188, 1365280), (212, 1210720), (224, 1145860), (230, 1115968), (235, 1092224), (265, 968576), (280, 916688), (320, 802102), (322, 797120), (329, 780160), (368, 697480), (371, 691840), (376, 682640), (424, 605360), (448, 572930), (460, 557984), (470, 546112), (530, 484288), (560, 458344), (640, 401051), (644, 398560), (658, 390080), (736, 348740), (742, 345920), (752, 341320), (805, 318848), (848, 302680), (896, 286465), (920, 278992), (940, 273056), (1060, 242144), (1081, 237440), (1120, 229172), (1219, 210560), (1288, 199280), (1316, 195040), (1472, 174370), (1484, 172960), (1504, 170660), (1610, 159424), (1645, 156032), (1696, 151340), (1840, 139496), (1855, 138368), (1880, 136528), (2120, 121072), (2162, 118720), (2240, 114586), (2438, 105280), (2491, 103040), (2576, 99640), (2632, 97520), (2944, 87185), (2968, 86480), (3008, 85330), (3220, 79712), (3290, 78016), (3392, 75670), (3680, 69748), (3710, 69184), (3760, 68264), (4240, 60536), (4324, 59360), (4480, 57293), (4876, 52640), (4982, 51520), (5152, 49820), (5264, 48760), (5405, 47488), (5936, 43240), (6016, 42665), (6095, 42112), (6440, 39856), (6580, 39008), (6784, 37835), (7360, 34874), (7420, 34592), (7520, 34132), (7567, 33920), (8480, 30268), (8533, 30080), (8648, 29680), (9752, 26320), (9964, 25760), (10304, 24910), (10528, 24380), (10810, 23744), (11872, 21620), (12190, 21056), (12455, 20608), (12880, 19928), (13160, 19504), (14720, 17437), (14840, 17296), (15040, 17066), (15134, 16960)]