256945920

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 432

約数和(自身を含む): 1043911680

約数和(自身を除く): 786965760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 79, 80, 84, 88, 96, 105, 110, 112, 120, 121, 128, 132, 140, 154, 158, 160, 165, 168, 176, 192, 210, 220, 224, 231, 237, 240, 242, 256, 264, 280, 308, 316, 320, 330, 336, 352, 363, 384, 385, 395, 420, 440, 448, 462, 474, 480, 484, 528, 553, 560, 605, 616, 632, 640, 660, 672, 704, 726, 768, 770, 790, 840, 847, 869, 880, 896, 924, 948, 960, 968, 1056, 1106, 1120, 1155, 1185, 1210, 1232, 1264, 1280, 1320, 1344, 1408, 1452, 1540, 1580, 1659, 1680, 1694, 1738, 1760, 1792, 1815, 1848, 1896, 1920, 1936, 2112, 2212, 2240, 2310, 2370, 2420, 2464, 2528, 2541, 2607, 2640, 2688, 2765, 2816, 2904, 3080, 3160, 3318, 3360, 3388, 3476, 3520, 3630, 3696, 3792, 3840, 3872, 4224, 4235, 4345, 4424, 4480, 4620, 4740, 4840, 4928, 5056, 5082, 5214, 5280, 5376, 5530, 5808, 6083, 6160, 6320, 6636, 6720, 6776, 6952, 7040, 7260, 7392, 7584, 7744, 8295, 8448, 8470, 8690, 8848, 8960, 9240, 9480, 9559, 9680, 9856, 10112, 10164, 10428, 10560, 11060, 11616, 12166, 12320, 12640, 12705, 13035, 13272, 13440, 13552, 13904, 14080, 14520, 14784, 15168, 15488, 16590, 16940, 17380, 17696, 18249, 18480, 18960, 19118, 19360, 19712, 20224, 20328, 20856, 21120, 22120, 23232, 24332, 24640, 25280, 25410, 26070, 26544, 26880, 27104, 27808, 28677, 29040, 29568, 30336, 30415, 30976, 33180, 33880, 34760, 35392, 36498, 36960, 37920, 38236, 38720, 40656, 41712, 42240, 44240, 46464, 47795, 48664, 49280, 50560, 50820, 52140, 53088, 54208, 55616, 57354, 58080, 59136, 60672, 60830, 66360, 66913, 67760, 69520, 70784, 72996, 73920, 75840, 76472, 77440, 81312, 83424, 88480, 91245, 92928, 95590, 97328, 98560, 101120, 101640, 104280, 106176, 108416, 111232, 114708, 116160, 121660, 132720, 133826, 135520, 139040, 141568, 143385, 145992, 147840, 151680, 152944, 154880, 162624, 166848, 176960, 182490, 191180, 194656, 200739, 203280, 208560, 212352, 216832, 222464, 229416, 232320, 243320, 265440, 267652, 271040, 278080, 286770, 291984, 295680, 303360, 305888, 325248, 333696, 334565, 353920, 364980, 382360, 389312, 401478, 406560, 417120, 424704, 458832, 464640, 486640, 530880, 535304, 542080, 556160, 573540, 583968, 611776, 650496, 667392, 669130, 707840, 729960, 764720, 778624, 802956, 813120, 834240, 917664, 973280, 1003695, 1061760, 1070608, 1084160, 1112320, 1147080, 1167936, 1223552, 1338260, 1459920, 1529440, 1557248, 1605912, 1626240, 1668480, 1835328, 1946560, 2007390, 2123520, 2141216, 2294160, 2335872, 2447104, 2676520, 2919840, 3058880, 3211824, 3252480, 3336960, 3670656, 3893120, 4014780, 4282432, 4588320, 4671744, 5353040, 5839680, 6117760, 6423648, 7341312, 7786240, 8029560, 8564864, 9176640, 10706080, 11679360, 12235520, 12847296, 16059120, 17129728, 18353280, 21412160, 23358720, 25694592, 32118240, 36706560, 42824320, 51389184, 64236480, 85648640, 128472960, 256945920]

約数ペア:

[(1, 256945920), (2, 128472960), (3, 85648640), (4, 64236480), (5, 51389184), (6, 42824320), (7, 36706560), (8, 32118240), (10, 25694592), (11, 23358720), (12, 21412160), (14, 18353280), (15, 17129728), (16, 16059120), (20, 12847296), (21, 12235520), (22, 11679360), (24, 10706080), (28, 9176640), (30, 8564864), (32, 8029560), (33, 7786240), (35, 7341312), (40, 6423648), (42, 6117760), (44, 5839680), (48, 5353040), (55, 4671744), (56, 4588320), (60, 4282432), (64, 4014780), (66, 3893120), (70, 3670656), (77, 3336960), (79, 3252480), (80, 3211824), (84, 3058880), (88, 2919840), (96, 2676520), (105, 2447104), (110, 2335872), (112, 2294160), (120, 2141216), (121, 2123520), (128, 2007390), (132, 1946560), (140, 1835328), (154, 1668480), (158, 1626240), (160, 1605912), (165, 1557248), (168, 1529440), (176, 1459920), (192, 1338260), (210, 1223552), (220, 1167936), (224, 1147080), (231, 1112320), (237, 1084160), (240, 1070608), (242, 1061760), (256, 1003695), (264, 973280), (280, 917664), (308, 834240), (316, 813120), (320, 802956), (330, 778624), (336, 764720), (352, 729960), (363, 707840), (384, 669130), (385, 667392), (395, 650496), (420, 611776), (440, 583968), (448, 573540), (462, 556160), (474, 542080), (480, 535304), (484, 530880), (528, 486640), (553, 464640), (560, 458832), (605, 424704), (616, 417120), (632, 406560), (640, 401478), (660, 389312), (672, 382360), (704, 364980), (726, 353920), (768, 334565), (770, 333696), (790, 325248), (840, 305888), (847, 303360), (869, 295680), (880, 291984), (896, 286770), (924, 278080), (948, 271040), (960, 267652), (968, 265440), (1056, 243320), (1106, 232320), (1120, 229416), (1155, 222464), (1185, 216832), (1210, 212352), (1232, 208560), (1264, 203280), (1280, 200739), (1320, 194656), (1344, 191180), (1408, 182490), (1452, 176960), (1540, 166848), (1580, 162624), (1659, 154880), (1680, 152944), (1694, 151680), (1738, 147840), (1760, 145992), (1792, 143385), (1815, 141568), (1848, 139040), (1896, 135520), (1920, 133826), (1936, 132720), (2112, 121660), (2212, 116160), (2240, 114708), (2310, 111232), (2370, 108416), (2420, 106176), (2464, 104280), (2528, 101640), (2541, 101120), (2607, 98560), (2640, 97328), (2688, 95590), (2765, 92928), (2816, 91245), (2904, 88480), (3080, 83424), (3160, 81312), (3318, 77440), (3360, 76472), (3388, 75840), (3476, 73920), (3520, 72996), (3630, 70784), (3696, 69520), (3792, 67760), (3840, 66913), (3872, 66360), (4224, 60830), (4235, 60672), (4345, 59136), (4424, 58080), (4480, 57354), (4620, 55616), (4740, 54208), (4840, 53088), (4928, 52140), (5056, 50820), (5082, 50560), (5214, 49280), (5280, 48664), (5376, 47795), (5530, 46464), (5808, 44240), (6083, 42240), (6160, 41712), (6320, 40656), (6636, 38720), (6720, 38236), (6776, 37920), (6952, 36960), (7040, 36498), (7260, 35392), (7392, 34760), (7584, 33880), (7744, 33180), (8295, 30976), (8448, 30415), (8470, 30336), (8690, 29568), (8848, 29040), (8960, 28677), (9240, 27808), (9480, 27104), (9559, 26880), (9680, 26544), (9856, 26070), (10112, 25410), (10164, 25280), (10428, 24640), (10560, 24332), (11060, 23232), (11616, 22120), (12166, 21120), (12320, 20856), (12640, 20328), (12705, 20224), (13035, 19712), (13272, 19360), (13440, 19118), (13552, 18960), (13904, 18480), (14080, 18249), (14520, 17696), (14784, 17380), (15168, 16940), (15488, 16590)]