81749760

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:434

約数の個数: 144

約数和(自身を含む): 266128800

約数和(自身を除く): 184379040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 183, 192, 240, 244, 256, 305, 320, 349, 366, 384, 480, 488, 610, 640, 698, 732, 768, 915, 960, 976, 1047, 1220, 1280, 1396, 1464, 1745, 1830, 1920, 1952, 2094, 2440, 2792, 2928, 3490, 3660, 3840, 3904, 4188, 4880, 5235, 5584, 5856, 6980, 7320, 7808, 8376, 9760, 10470, 11168, 11712, 13960, 14640, 15616, 16752, 19520, 20940, 21289, 22336, 23424, 27920, 29280, 33504, 39040, 41880, 42578, 44672, 46848, 55840, 58560, 63867, 67008, 78080, 83760, 85156, 89344, 106445, 111680, 117120, 127734, 134016, 167520, 170312, 212890, 223360, 234240, 255468, 268032, 319335, 335040, 340624, 425780, 446720, 510936, 638670, 670080, 681248, 851560, 1021872, 1277340, 1340160, 1362496, 1703120, 2043744, 2554680, 2724992, 3406240, 4087488, 5109360, 5449984, 6812480, 8174976, 10218720, 13624960, 16349952, 20437440, 27249920, 40874880, 81749760]

約数ペア:

[(1, 81749760), (2, 40874880), (3, 27249920), (4, 20437440), (5, 16349952), (6, 13624960), (8, 10218720), (10, 8174976), (12, 6812480), (15, 5449984), (16, 5109360), (20, 4087488), (24, 3406240), (30, 2724992), (32, 2554680), (40, 2043744), (48, 1703120), (60, 1362496), (61, 1340160), (64, 1277340), (80, 1021872), (96, 851560), (120, 681248), (122, 670080), (128, 638670), (160, 510936), (183, 446720), (192, 425780), (240, 340624), (244, 335040), (256, 319335), (305, 268032), (320, 255468), (349, 234240), (366, 223360), (384, 212890), (480, 170312), (488, 167520), (610, 134016), (640, 127734), (698, 117120), (732, 111680), (768, 106445), (915, 89344), (960, 85156), (976, 83760), (1047, 78080), (1220, 67008), (1280, 63867), (1396, 58560), (1464, 55840), (1745, 46848), (1830, 44672), (1920, 42578), (1952, 41880), (2094, 39040), (2440, 33504), (2792, 29280), (2928, 27920), (3490, 23424), (3660, 22336), (3840, 21289), (3904, 20940), (4188, 19520), (4880, 16752), (5235, 15616), (5584, 14640), (5856, 13960), (6980, 11712), (7320, 11168), (7808, 10470), (8376, 9760)]