18856320

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 256

約数和(自身を含む): 72852480

約数和(自身を除く): 53996160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 32, 35, 40, 42, 46, 48, 56, 60, 61, 64, 69, 70, 80, 84, 92, 96, 105, 112, 115, 120, 122, 128, 138, 140, 160, 161, 168, 183, 184, 192, 210, 224, 230, 240, 244, 276, 280, 305, 320, 322, 336, 345, 366, 368, 384, 420, 427, 448, 460, 480, 483, 488, 552, 560, 610, 640, 644, 672, 690, 732, 736, 805, 840, 854, 896, 915, 920, 960, 966, 976, 1104, 1120, 1220, 1281, 1288, 1344, 1380, 1403, 1464, 1472, 1610, 1680, 1708, 1830, 1840, 1920, 1932, 1952, 2135, 2208, 2240, 2415, 2440, 2562, 2576, 2688, 2760, 2806, 2928, 2944, 3220, 3360, 3416, 3660, 3680, 3864, 3904, 4209, 4270, 4416, 4480, 4830, 4880, 5124, 5152, 5520, 5612, 5856, 6405, 6440, 6720, 6832, 7015, 7320, 7360, 7728, 7808, 8418, 8540, 8832, 9660, 9760, 9821, 10248, 10304, 11040, 11224, 11712, 12810, 12880, 13440, 13664, 14030, 14640, 14720, 15456, 16836, 17080, 19320, 19520, 19642, 20496, 20608, 21045, 22080, 22448, 23424, 25620, 25760, 27328, 28060, 29280, 29463, 30912, 33672, 34160, 38640, 39040, 39284, 40992, 42090, 44160, 44896, 49105, 51240, 51520, 54656, 56120, 58560, 58926, 61824, 67344, 68320, 77280, 78568, 81984, 84180, 89792, 98210, 102480, 103040, 112240, 117120, 117852, 134688, 136640, 147315, 154560, 157136, 163968, 168360, 179584, 196420, 204960, 224480, 235704, 269376, 273280, 294630, 309120, 314272, 336720, 392840, 409920, 448960, 471408, 538752, 589260, 628544, 673440, 785680, 819840, 897920, 942816, 1178520, 1257088, 1346880, 1571360, 1885632, 2357040, 2693760, 3142720, 3771264, 4714080, 6285440, 9428160, 18856320]

約数ペア:

[(1, 18856320), (2, 9428160), (3, 6285440), (4, 4714080), (5, 3771264), (6, 3142720), (7, 2693760), (8, 2357040), (10, 1885632), (12, 1571360), (14, 1346880), (15, 1257088), (16, 1178520), (20, 942816), (21, 897920), (23, 819840), (24, 785680), (28, 673440), (30, 628544), (32, 589260), (35, 538752), (40, 471408), (42, 448960), (46, 409920), (48, 392840), (56, 336720), (60, 314272), (61, 309120), (64, 294630), (69, 273280), (70, 269376), (80, 235704), (84, 224480), (92, 204960), (96, 196420), (105, 179584), (112, 168360), (115, 163968), (120, 157136), (122, 154560), (128, 147315), (138, 136640), (140, 134688), (160, 117852), (161, 117120), (168, 112240), (183, 103040), (184, 102480), (192, 98210), (210, 89792), (224, 84180), (230, 81984), (240, 78568), (244, 77280), (276, 68320), (280, 67344), (305, 61824), (320, 58926), (322, 58560), (336, 56120), (345, 54656), (366, 51520), (368, 51240), (384, 49105), (420, 44896), (427, 44160), (448, 42090), (460, 40992), (480, 39284), (483, 39040), (488, 38640), (552, 34160), (560, 33672), (610, 30912), (640, 29463), (644, 29280), (672, 28060), (690, 27328), (732, 25760), (736, 25620), (805, 23424), (840, 22448), (854, 22080), (896, 21045), (915, 20608), (920, 20496), (960, 19642), (966, 19520), (976, 19320), (1104, 17080), (1120, 16836), (1220, 15456), (1281, 14720), (1288, 14640), (1344, 14030), (1380, 13664), (1403, 13440), (1464, 12880), (1472, 12810), (1610, 11712), (1680, 11224), (1708, 11040), (1830, 10304), (1840, 10248), (1920, 9821), (1932, 9760), (1952, 9660), (2135, 8832), (2208, 8540), (2240, 8418), (2415, 7808), (2440, 7728), (2562, 7360), (2576, 7320), (2688, 7015), (2760, 6832), (2806, 6720), (2928, 6440), (2944, 6405), (3220, 5856), (3360, 5612), (3416, 5520), (3660, 5152), (3680, 5124), (3864, 4880), (3904, 4830), (4209, 4480), (4270, 4416)]