256054400

素因数分解:

$2^7\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:132

約数の個数: 288

約数和(自身を含む): 778610880

約数和(自身を除く): 522556480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 32, 35, 40, 46, 49, 50, 56, 64, 70, 71, 80, 92, 98, 100, 112, 115, 128, 140, 142, 160, 161, 175, 184, 196, 200, 224, 230, 245, 280, 284, 320, 322, 350, 355, 368, 392, 400, 448, 460, 490, 497, 560, 568, 575, 640, 644, 700, 710, 736, 784, 800, 805, 896, 920, 980, 994, 1120, 1127, 1136, 1150, 1225, 1288, 1400, 1420, 1472, 1568, 1600, 1610, 1633, 1775, 1840, 1960, 1988, 2240, 2254, 2272, 2300, 2450, 2485, 2576, 2800, 2840, 2944, 3136, 3200, 3220, 3266, 3479, 3550, 3680, 3920, 3976, 4025, 4480, 4508, 4544, 4600, 4900, 4970, 5152, 5600, 5635, 5680, 6272, 6440, 6532, 6958, 7100, 7360, 7840, 7952, 8050, 8165, 9016, 9088, 9200, 9800, 9940, 10304, 11200, 11270, 11360, 11431, 12425, 12880, 13064, 13916, 14200, 14720, 15680, 15904, 16100, 16330, 17395, 18032, 18400, 19600, 19880, 20608, 22400, 22540, 22720, 22862, 24850, 25760, 26128, 27832, 28175, 28400, 31360, 31808, 32200, 32660, 34790, 36064, 36800, 39200, 39760, 40825, 45080, 45440, 45724, 49700, 51520, 52256, 55664, 56350, 56800, 57155, 63616, 64400, 65320, 69580, 72128, 73600, 78400, 79520, 80017, 81650, 86975, 90160, 91448, 99400, 103040, 104512, 111328, 112700, 113600, 114310, 128800, 130640, 139160, 144256, 156800, 159040, 160034, 163300, 173950, 180320, 182896, 198800, 209024, 222656, 225400, 227200, 228620, 257600, 261280, 278320, 285775, 318080, 320068, 326600, 347900, 360640, 365792, 397600, 400085, 445312, 450800, 457240, 515200, 522560, 556640, 571550, 640136, 653200, 695800, 721280, 731584, 795200, 800170, 901600, 914480, 1045120, 1113280, 1143100, 1280272, 1306400, 1391600, 1463168, 1590400, 1600340, 1803200, 1828960, 2000425, 2226560, 2286200, 2560544, 2612800, 2783200, 3200680, 3606400, 3657920, 4000850, 4572400, 5121088, 5225600, 5566400, 6401360, 7315840, 8001700, 9144800, 10242176, 11132800, 12802720, 16003400, 18289600, 25605440, 32006800, 36579200, 51210880, 64013600, 128027200, 256054400]

約数ペア:

[(1, 256054400), (2, 128027200), (4, 64013600), (5, 51210880), (7, 36579200), (8, 32006800), (10, 25605440), (14, 18289600), (16, 16003400), (20, 12802720), (23, 11132800), (25, 10242176), (28, 9144800), (32, 8001700), (35, 7315840), (40, 6401360), (46, 5566400), (49, 5225600), (50, 5121088), (56, 4572400), (64, 4000850), (70, 3657920), (71, 3606400), (80, 3200680), (92, 2783200), (98, 2612800), (100, 2560544), (112, 2286200), (115, 2226560), (128, 2000425), (140, 1828960), (142, 1803200), (160, 1600340), (161, 1590400), (175, 1463168), (184, 1391600), (196, 1306400), (200, 1280272), (224, 1143100), (230, 1113280), (245, 1045120), (280, 914480), (284, 901600), (320, 800170), (322, 795200), (350, 731584), (355, 721280), (368, 695800), (392, 653200), (400, 640136), (448, 571550), (460, 556640), (490, 522560), (497, 515200), (560, 457240), (568, 450800), (575, 445312), (640, 400085), (644, 397600), (700, 365792), (710, 360640), (736, 347900), (784, 326600), (800, 320068), (805, 318080), (896, 285775), (920, 278320), (980, 261280), (994, 257600), (1120, 228620), (1127, 227200), (1136, 225400), (1150, 222656), (1225, 209024), (1288, 198800), (1400, 182896), (1420, 180320), (1472, 173950), (1568, 163300), (1600, 160034), (1610, 159040), (1633, 156800), (1775, 144256), (1840, 139160), (1960, 130640), (1988, 128800), (2240, 114310), (2254, 113600), (2272, 112700), (2300, 111328), (2450, 104512), (2485, 103040), (2576, 99400), (2800, 91448), (2840, 90160), (2944, 86975), (3136, 81650), (3200, 80017), (3220, 79520), (3266, 78400), (3479, 73600), (3550, 72128), (3680, 69580), (3920, 65320), (3976, 64400), (4025, 63616), (4480, 57155), (4508, 56800), (4544, 56350), (4600, 55664), (4900, 52256), (4970, 51520), (5152, 49700), (5600, 45724), (5635, 45440), (5680, 45080), (6272, 40825), (6440, 39760), (6532, 39200), (6958, 36800), (7100, 36064), (7360, 34790), (7840, 32660), (7952, 32200), (8050, 31808), (8165, 31360), (9016, 28400), (9088, 28175), (9200, 27832), (9800, 26128), (9940, 25760), (10304, 24850), (11200, 22862), (11270, 22720), (11360, 22540), (11431, 22400), (12425, 20608), (12880, 19880), (13064, 19600), (13916, 18400), (14200, 18032), (14720, 17395), (15680, 16330), (15904, 16100)]