28978560

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1$

素因数の和:87

約数の個数: 320

約数和(自身を含む): 114040080

約数和(自身を除く): 85061520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 43, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 81, 86, 90, 96, 104, 108, 117, 120, 128, 129, 130, 135, 144, 156, 160, 162, 172, 180, 192, 195, 208, 215, 216, 234, 240, 258, 260, 270, 288, 312, 320, 324, 344, 351, 360, 384, 387, 390, 405, 416, 430, 432, 468, 480, 516, 520, 540, 559, 576, 585, 624, 640, 645, 648, 688, 702, 720, 774, 780, 810, 832, 860, 864, 936, 960, 1032, 1040, 1053, 1080, 1118, 1152, 1161, 1170, 1248, 1290, 1296, 1376, 1404, 1440, 1548, 1560, 1620, 1664, 1677, 1720, 1728, 1755, 1872, 1920, 1935, 2064, 2080, 2106, 2160, 2236, 2322, 2340, 2496, 2580, 2592, 2752, 2795, 2808, 2880, 3096, 3120, 3240, 3354, 3440, 3456, 3483, 3510, 3744, 3870, 4128, 4160, 4212, 4320, 4472, 4644, 4680, 4992, 5031, 5160, 5184, 5265, 5504, 5590, 5616, 5760, 5805, 6192, 6240, 6480, 6708, 6880, 6966, 7020, 7488, 7740, 8256, 8320, 8385, 8424, 8640, 8944, 9288, 9360, 10062, 10320, 10368, 10530, 11180, 11232, 11610, 12384, 12480, 12960, 13416, 13760, 13932, 14040, 14976, 15093, 15480, 16512, 16770, 16848, 17280, 17415, 17888, 18576, 18720, 20124, 20640, 21060, 22360, 22464, 23220, 24768, 24960, 25155, 25920, 26832, 27520, 27864, 28080, 30186, 30960, 33540, 33696, 34830, 35776, 37152, 37440, 40248, 41280, 42120, 44720, 44928, 45279, 46440, 49536, 50310, 51840, 53664, 55728, 56160, 60372, 61920, 67080, 67392, 69660, 71552, 74304, 74880, 75465, 80496, 82560, 84240, 89440, 90558, 92880, 100620, 107328, 111456, 112320, 120744, 123840, 134160, 134784, 139320, 148608, 150930, 160992, 168480, 178880, 181116, 185760, 201240, 214656, 222912, 224640, 226395, 241488, 247680, 268320, 278640, 301860, 321984, 336960, 357760, 362232, 371520, 402480, 445824, 452790, 482976, 536640, 557280, 603720, 643968, 673920, 724464, 743040, 804960, 905580, 965952, 1073280, 1114560, 1207440, 1448928, 1609920, 1811160, 1931904, 2229120, 2414880, 2897856, 3219840, 3622320, 4829760, 5795712, 7244640, 9659520, 14489280, 28978560]

約数ペア:

[(1, 28978560), (2, 14489280), (3, 9659520), (4, 7244640), (5, 5795712), (6, 4829760), (8, 3622320), (9, 3219840), (10, 2897856), (12, 2414880), (13, 2229120), (15, 1931904), (16, 1811160), (18, 1609920), (20, 1448928), (24, 1207440), (26, 1114560), (27, 1073280), (30, 965952), (32, 905580), (36, 804960), (39, 743040), (40, 724464), (43, 673920), (45, 643968), (48, 603720), (52, 557280), (54, 536640), (60, 482976), (64, 452790), (65, 445824), (72, 402480), (78, 371520), (80, 362232), (81, 357760), (86, 336960), (90, 321984), (96, 301860), (104, 278640), (108, 268320), (117, 247680), (120, 241488), (128, 226395), (129, 224640), (130, 222912), (135, 214656), (144, 201240), (156, 185760), (160, 181116), (162, 178880), (172, 168480), (180, 160992), (192, 150930), (195, 148608), (208, 139320), (215, 134784), (216, 134160), (234, 123840), (240, 120744), (258, 112320), (260, 111456), (270, 107328), (288, 100620), (312, 92880), (320, 90558), (324, 89440), (344, 84240), (351, 82560), (360, 80496), (384, 75465), (387, 74880), (390, 74304), (405, 71552), (416, 69660), (430, 67392), (432, 67080), (468, 61920), (480, 60372), (516, 56160), (520, 55728), (540, 53664), (559, 51840), (576, 50310), (585, 49536), (624, 46440), (640, 45279), (645, 44928), (648, 44720), (688, 42120), (702, 41280), (720, 40248), (774, 37440), (780, 37152), (810, 35776), (832, 34830), (860, 33696), (864, 33540), (936, 30960), (960, 30186), (1032, 28080), (1040, 27864), (1053, 27520), (1080, 26832), (1118, 25920), (1152, 25155), (1161, 24960), (1170, 24768), (1248, 23220), (1290, 22464), (1296, 22360), (1376, 21060), (1404, 20640), (1440, 20124), (1548, 18720), (1560, 18576), (1620, 17888), (1664, 17415), (1677, 17280), (1720, 16848), (1728, 16770), (1755, 16512), (1872, 15480), (1920, 15093), (1935, 14976), (2064, 14040), (2080, 13932), (2106, 13760), (2160, 13416), (2236, 12960), (2322, 12480), (2340, 12384), (2496, 11610), (2580, 11232), (2592, 11180), (2752, 10530), (2795, 10368), (2808, 10320), (2880, 10062), (3096, 9360), (3120, 9288), (3240, 8944), (3354, 8640), (3440, 8424), (3456, 8385), (3483, 8320), (3510, 8256), (3744, 7740), (3870, 7488), (4128, 7020), (4160, 6966), (4212, 6880), (4320, 6708), (4472, 6480), (4644, 6240), (4680, 6192), (4992, 5805), (5031, 5760), (5160, 5616), (5184, 5590), (5265, 5504)]