256621120

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:357

約数の個数: 224

約数和(自身を含む): 774240768

約数和(自身を除く): 517619648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 32, 34, 35, 40, 46, 56, 64, 68, 70, 80, 85, 92, 112, 115, 119, 136, 140, 160, 161, 170, 184, 224, 230, 238, 272, 280, 293, 320, 322, 340, 368, 391, 448, 460, 476, 544, 560, 586, 595, 644, 680, 736, 782, 805, 920, 952, 1088, 1120, 1172, 1190, 1288, 1360, 1465, 1472, 1564, 1610, 1840, 1904, 1955, 2051, 2240, 2344, 2380, 2576, 2720, 2737, 2930, 3128, 3220, 3680, 3808, 3910, 4102, 4688, 4760, 4981, 5152, 5440, 5474, 5860, 6256, 6440, 6739, 7360, 7616, 7820, 8204, 9376, 9520, 9962, 10255, 10304, 10948, 11720, 12512, 12880, 13478, 13685, 15640, 16408, 18752, 19040, 19924, 20510, 21896, 23440, 24905, 25024, 25760, 26956, 27370, 31280, 32816, 33695, 34867, 38080, 39848, 41020, 43792, 46880, 47173, 49810, 51520, 53912, 54740, 62560, 65632, 67390, 69734, 79696, 82040, 87584, 93760, 94346, 99620, 107824, 109480, 114563, 125120, 131264, 134780, 139468, 159392, 164080, 174335, 175168, 188692, 199240, 215648, 218960, 229126, 235865, 269560, 278936, 318784, 328160, 348670, 377384, 398480, 431296, 437920, 458252, 471730, 539120, 557872, 572815, 656320, 697340, 754768, 796960, 801941, 875840, 916504, 943460, 1078240, 1115744, 1145630, 1394680, 1509536, 1593920, 1603882, 1833008, 1886920, 2156480, 2231488, 2291260, 2789360, 3019072, 3207764, 3666016, 3773840, 4009705, 4582520, 5578720, 6415528, 7332032, 7547680, 8019410, 9165040, 11157440, 12831056, 15095360, 16038820, 18330080, 25662112, 32077640, 36660160, 51324224, 64155280, 128310560, 256621120]

約数ペア:

[(1, 256621120), (2, 128310560), (4, 64155280), (5, 51324224), (7, 36660160), (8, 32077640), (10, 25662112), (14, 18330080), (16, 16038820), (17, 15095360), (20, 12831056), (23, 11157440), (28, 9165040), (32, 8019410), (34, 7547680), (35, 7332032), (40, 6415528), (46, 5578720), (56, 4582520), (64, 4009705), (68, 3773840), (70, 3666016), (80, 3207764), (85, 3019072), (92, 2789360), (112, 2291260), (115, 2231488), (119, 2156480), (136, 1886920), (140, 1833008), (160, 1603882), (161, 1593920), (170, 1509536), (184, 1394680), (224, 1145630), (230, 1115744), (238, 1078240), (272, 943460), (280, 916504), (293, 875840), (320, 801941), (322, 796960), (340, 754768), (368, 697340), (391, 656320), (448, 572815), (460, 557872), (476, 539120), (544, 471730), (560, 458252), (586, 437920), (595, 431296), (644, 398480), (680, 377384), (736, 348670), (782, 328160), (805, 318784), (920, 278936), (952, 269560), (1088, 235865), (1120, 229126), (1172, 218960), (1190, 215648), (1288, 199240), (1360, 188692), (1465, 175168), (1472, 174335), (1564, 164080), (1610, 159392), (1840, 139468), (1904, 134780), (1955, 131264), (2051, 125120), (2240, 114563), (2344, 109480), (2380, 107824), (2576, 99620), (2720, 94346), (2737, 93760), (2930, 87584), (3128, 82040), (3220, 79696), (3680, 69734), (3808, 67390), (3910, 65632), (4102, 62560), (4688, 54740), (4760, 53912), (4981, 51520), (5152, 49810), (5440, 47173), (5474, 46880), (5860, 43792), (6256, 41020), (6440, 39848), (6739, 38080), (7360, 34867), (7616, 33695), (7820, 32816), (8204, 31280), (9376, 27370), (9520, 26956), (9962, 25760), (10255, 25024), (10304, 24905), (10948, 23440), (11720, 21896), (12512, 20510), (12880, 19924), (13478, 19040), (13685, 18752), (15640, 16408)]