20990735360

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:289

約数の個数: 352

約数和(自身を含む): 59679908352

約数和(自身を除く): 38689172992

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 71, 73, 80, 112, 113, 128, 140, 142, 146, 160, 224, 226, 256, 280, 284, 292, 320, 355, 365, 448, 452, 497, 511, 512, 560, 565, 568, 584, 640, 710, 730, 791, 896, 904, 994, 1022, 1024, 1120, 1130, 1136, 1168, 1280, 1420, 1460, 1582, 1792, 1808, 1988, 2044, 2240, 2260, 2272, 2336, 2485, 2555, 2560, 2840, 2920, 3164, 3584, 3616, 3955, 3976, 4088, 4480, 4520, 4544, 4672, 4970, 5110, 5120, 5183, 5680, 5840, 6328, 7168, 7232, 7910, 7952, 8023, 8176, 8249, 8960, 9040, 9088, 9344, 9940, 10220, 10366, 11360, 11680, 12656, 14464, 15820, 15904, 16046, 16352, 16498, 17920, 18080, 18176, 18688, 19880, 20440, 20732, 22720, 23360, 25312, 25915, 28928, 31640, 31808, 32092, 32704, 32996, 35840, 36160, 36281, 36352, 37376, 39760, 40115, 40880, 41245, 41464, 45440, 46720, 50624, 51830, 56161, 57743, 57856, 63280, 63616, 64184, 65408, 65992, 72320, 72562, 72704, 74752, 79520, 80230, 81760, 82490, 82928, 90880, 93440, 101248, 103660, 112322, 115486, 115712, 126560, 127232, 128368, 130816, 131984, 144640, 145124, 159040, 160460, 163520, 164980, 165856, 181405, 181760, 186880, 202496, 207320, 224644, 230972, 253120, 254464, 256736, 261632, 263968, 280805, 288715, 289280, 290248, 318080, 320920, 327040, 329960, 331712, 362810, 363520, 373760, 404992, 414640, 449288, 461944, 506240, 508928, 513472, 523264, 527936, 561610, 577430, 578560, 580496, 585679, 636160, 641840, 654080, 659920, 663424, 725620, 809984, 829280, 898576, 923888, 1012480, 1026944, 1055872, 1123220, 1154860, 1160992, 1171358, 1272320, 1283680, 1308160, 1319840, 1326848, 1451240, 1658560, 1797152, 1847776, 2024960, 2053888, 2111744, 2246440, 2309720, 2321984, 2342716, 2544640, 2567360, 2616320, 2639680, 2653696, 2902480, 2928395, 3317120, 3594304, 3695552, 4049920, 4099753, 4107776, 4223488, 4492880, 4619440, 4643968, 4685432, 5134720, 5279360, 5307392, 5804960, 5856790, 6634240, 7188608, 7391104, 8199506, 8215552, 8446976, 8985760, 9238880, 9287936, 9370864, 10269440, 10558720, 11609920, 11713580, 13268480, 14377216, 14782208, 16399012, 17971520, 18477760, 18575872, 18741728, 20498765, 20538880, 21117440, 23219840, 23427160, 26536960, 28754432, 29564416, 32798024, 35943040, 36955520, 37151744, 37483456, 40997530, 41077760, 42234880, 46439680, 46854320, 57508864, 59128832, 65596048, 71886080, 73911040, 74966912, 81995060, 92879360, 93708640, 131192096, 143772160, 147822080, 149933824, 163990120, 185758720, 187417280, 262384192, 287544320, 295644160, 299867648, 327980240, 374834560, 524768384, 599735296, 655960480, 749669120, 1049536768, 1311920960, 1499338240, 2099073536, 2623841920, 2998676480, 4198147072, 5247683840, 10495367680, 20990735360]

約数ペア:

[(1, 20990735360), (2, 10495367680), (4, 5247683840), (5, 4198147072), (7, 2998676480), (8, 2623841920), (10, 2099073536), (14, 1499338240), (16, 1311920960), (20, 1049536768), (28, 749669120), (32, 655960480), (35, 599735296), (40, 524768384), (56, 374834560), (64, 327980240), (70, 299867648), (71, 295644160), (73, 287544320), (80, 262384192), (112, 187417280), (113, 185758720), (128, 163990120), (140, 149933824), (142, 147822080), (146, 143772160), (160, 131192096), (224, 93708640), (226, 92879360), (256, 81995060), (280, 74966912), (284, 73911040), (292, 71886080), (320, 65596048), (355, 59128832), (365, 57508864), (448, 46854320), (452, 46439680), (497, 42234880), (511, 41077760), (512, 40997530), (560, 37483456), (565, 37151744), (568, 36955520), (584, 35943040), (640, 32798024), (710, 29564416), (730, 28754432), (791, 26536960), (896, 23427160), (904, 23219840), (994, 21117440), (1022, 20538880), (1024, 20498765), (1120, 18741728), (1130, 18575872), (1136, 18477760), (1168, 17971520), (1280, 16399012), (1420, 14782208), (1460, 14377216), (1582, 13268480), (1792, 11713580), (1808, 11609920), (1988, 10558720), (2044, 10269440), (2240, 9370864), (2260, 9287936), (2272, 9238880), (2336, 8985760), (2485, 8446976), (2555, 8215552), (2560, 8199506), (2840, 7391104), (2920, 7188608), (3164, 6634240), (3584, 5856790), (3616, 5804960), (3955, 5307392), (3976, 5279360), (4088, 5134720), (4480, 4685432), (4520, 4643968), (4544, 4619440), (4672, 4492880), (4970, 4223488), (5110, 4107776), (5120, 4099753), (5183, 4049920), (5680, 3695552), (5840, 3594304), (6328, 3317120), (7168, 2928395), (7232, 2902480), (7910, 2653696), (7952, 2639680), (8023, 2616320), (8176, 2567360), (8249, 2544640), (8960, 2342716), (9040, 2321984), (9088, 2309720), (9344, 2246440), (9940, 2111744), (10220, 2053888), (10366, 2024960), (11360, 1847776), (11680, 1797152), (12656, 1658560), (14464, 1451240), (15820, 1326848), (15904, 1319840), (16046, 1308160), (16352, 1283680), (16498, 1272320), (17920, 1171358), (18080, 1160992), (18176, 1154860), (18688, 1123220), (19880, 1055872), (20440, 1026944), (20732, 1012480), (22720, 923888), (23360, 898576), (25312, 829280), (25915, 809984), (28928, 725620), (31640, 663424), (31808, 659920), (32092, 654080), (32704, 641840), (32996, 636160), (35840, 585679), (36160, 580496), (36281, 578560), (36352, 577430), (37376, 561610), (39760, 527936), (40115, 523264), (40880, 513472), (41245, 508928), (41464, 506240), (45440, 461944), (46720, 449288), (50624, 414640), (51830, 404992), (56161, 373760), (57743, 363520), (57856, 362810), (63280, 331712), (63616, 329960), (64184, 327040), (65408, 320920), (65992, 318080), (72320, 290248), (72562, 289280), (72704, 288715), (74752, 280805), (79520, 263968), (80230, 261632), (81760, 256736), (82490, 254464), (82928, 253120), (90880, 230972), (93440, 224644), (101248, 207320), (103660, 202496), (112322, 186880), (115486, 181760), (115712, 181405), (126560, 165856), (127232, 164980), (128368, 163520), (130816, 160460), (131984, 159040), (144640, 145124)]