26781440

素因数分解:

$2^8\times 5^1\times 7^3\times {\mathrm{61}}^1$

素因数の和:103

約数の個数: 144

約数和(自身を含む): 76036800

約数和(自身を除く): 49255360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 61, 64, 70, 80, 98, 112, 122, 128, 140, 160, 196, 224, 244, 245, 256, 280, 305, 320, 343, 392, 427, 448, 488, 490, 560, 610, 640, 686, 784, 854, 896, 976, 980, 1120, 1220, 1280, 1372, 1568, 1708, 1715, 1792, 1952, 1960, 2135, 2240, 2440, 2744, 2989, 3136, 3416, 3430, 3904, 3920, 4270, 4480, 4880, 5488, 5978, 6272, 6832, 6860, 7808, 7840, 8540, 8960, 9760, 10976, 11956, 12544, 13664, 13720, 14945, 15616, 15680, 17080, 19520, 20923, 21952, 23912, 27328, 27440, 29890, 31360, 34160, 39040, 41846, 43904, 47824, 54656, 54880, 59780, 62720, 68320, 78080, 83692, 87808, 95648, 104615, 109312, 109760, 119560, 136640, 167384, 191296, 209230, 219520, 239120, 273280, 334768, 382592, 418460, 439040, 478240, 546560, 669536, 765184, 836920, 956480, 1339072, 1673840, 1912960, 2678144, 3347680, 3825920, 5356288, 6695360, 13390720, 26781440]

約数ペア:

[(1, 26781440), (2, 13390720), (4, 6695360), (5, 5356288), (7, 3825920), (8, 3347680), (10, 2678144), (14, 1912960), (16, 1673840), (20, 1339072), (28, 956480), (32, 836920), (35, 765184), (40, 669536), (49, 546560), (56, 478240), (61, 439040), (64, 418460), (70, 382592), (80, 334768), (98, 273280), (112, 239120), (122, 219520), (128, 209230), (140, 191296), (160, 167384), (196, 136640), (224, 119560), (244, 109760), (245, 109312), (256, 104615), (280, 95648), (305, 87808), (320, 83692), (343, 78080), (392, 68320), (427, 62720), (448, 59780), (488, 54880), (490, 54656), (560, 47824), (610, 43904), (640, 41846), (686, 39040), (784, 34160), (854, 31360), (896, 29890), (976, 27440), (980, 27328), (1120, 23912), (1220, 21952), (1280, 20923), (1372, 19520), (1568, 17080), (1708, 15680), (1715, 15616), (1792, 14945), (1952, 13720), (1960, 13664), (2135, 12544), (2240, 11956), (2440, 10976), (2744, 9760), (2989, 8960), (3136, 8540), (3416, 7840), (3430, 7808), (3904, 6860), (3920, 6832), (4270, 6272), (4480, 5978), (4880, 5488)]