257585280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 256

約数和(自身を含む): 904780800

約数和(自身を除く): 647195520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 23, 24, 30, 32, 38, 40, 46, 48, 57, 60, 64, 69, 76, 80, 92, 95, 96, 114, 115, 120, 128, 138, 152, 160, 184, 190, 192, 228, 230, 240, 276, 285, 304, 307, 320, 345, 368, 380, 384, 437, 456, 460, 480, 552, 570, 608, 614, 640, 690, 736, 760, 874, 912, 920, 921, 960, 1104, 1140, 1216, 1228, 1311, 1380, 1472, 1520, 1535, 1748, 1824, 1840, 1842, 1920, 2185, 2208, 2280, 2432, 2456, 2622, 2760, 2944, 3040, 3070, 3496, 3648, 3680, 3684, 4370, 4416, 4560, 4605, 4912, 5244, 5520, 5833, 6080, 6140, 6555, 6992, 7061, 7296, 7360, 7368, 8740, 8832, 9120, 9210, 9824, 10488, 11040, 11666, 12160, 12280, 13110, 13984, 14122, 14720, 14736, 17480, 17499, 18240, 18420, 19648, 20976, 21183, 22080, 23332, 24560, 26220, 27968, 28244, 29165, 29472, 34960, 34998, 35305, 36480, 36840, 39296, 41952, 42366, 44160, 46664, 49120, 52440, 55936, 56488, 58330, 58944, 69920, 69996, 70610, 73680, 83904, 84732, 87495, 93328, 98240, 104880, 105915, 112976, 116660, 117888, 134159, 139840, 139992, 141220, 147360, 167808, 169464, 174990, 186656, 196480, 209760, 211830, 225952, 233320, 268318, 279680, 279984, 282440, 294720, 338928, 349980, 373312, 402477, 419520, 423660, 451904, 466640, 536636, 559968, 564880, 589440, 670795, 677856, 699960, 746624, 804954, 839040, 847320, 903808, 933280, 1073272, 1119936, 1129760, 1341590, 1355712, 1399920, 1609908, 1694640, 1866560, 2012385, 2146544, 2239872, 2259520, 2683180, 2711424, 2799840, 3219816, 3389280, 3733120, 4024770, 4293088, 4519040, 5366360, 5599680, 6439632, 6778560, 8049540, 8586176, 10732720, 11199360, 12879264, 13557120, 16099080, 17172352, 21465440, 25758528, 32198160, 42930880, 51517056, 64396320, 85861760, 128792640, 257585280]

約数ペア:

[(1, 257585280), (2, 128792640), (3, 85861760), (4, 64396320), (5, 51517056), (6, 42930880), (8, 32198160), (10, 25758528), (12, 21465440), (15, 17172352), (16, 16099080), (19, 13557120), (20, 12879264), (23, 11199360), (24, 10732720), (30, 8586176), (32, 8049540), (38, 6778560), (40, 6439632), (46, 5599680), (48, 5366360), (57, 4519040), (60, 4293088), (64, 4024770), (69, 3733120), (76, 3389280), (80, 3219816), (92, 2799840), (95, 2711424), (96, 2683180), (114, 2259520), (115, 2239872), (120, 2146544), (128, 2012385), (138, 1866560), (152, 1694640), (160, 1609908), (184, 1399920), (190, 1355712), (192, 1341590), (228, 1129760), (230, 1119936), (240, 1073272), (276, 933280), (285, 903808), (304, 847320), (307, 839040), (320, 804954), (345, 746624), (368, 699960), (380, 677856), (384, 670795), (437, 589440), (456, 564880), (460, 559968), (480, 536636), (552, 466640), (570, 451904), (608, 423660), (614, 419520), (640, 402477), (690, 373312), (736, 349980), (760, 338928), (874, 294720), (912, 282440), (920, 279984), (921, 279680), (960, 268318), (1104, 233320), (1140, 225952), (1216, 211830), (1228, 209760), (1311, 196480), (1380, 186656), (1472, 174990), (1520, 169464), (1535, 167808), (1748, 147360), (1824, 141220), (1840, 139992), (1842, 139840), (1920, 134159), (2185, 117888), (2208, 116660), (2280, 112976), (2432, 105915), (2456, 104880), (2622, 98240), (2760, 93328), (2944, 87495), (3040, 84732), (3070, 83904), (3496, 73680), (3648, 70610), (3680, 69996), (3684, 69920), (4370, 58944), (4416, 58330), (4560, 56488), (4605, 55936), (4912, 52440), (5244, 49120), (5520, 46664), (5833, 44160), (6080, 42366), (6140, 41952), (6555, 39296), (6992, 36840), (7061, 36480), (7296, 35305), (7360, 34998), (7368, 34960), (8740, 29472), (8832, 29165), (9120, 28244), (9210, 27968), (9824, 26220), (10488, 24560), (11040, 23332), (11666, 22080), (12160, 21183), (12280, 20976), (13110, 19648), (13984, 18420), (14122, 18240), (14720, 17499), (14736, 17480)]