51351440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{857}}^1$

素因数の和:984

約数の個数: 80

約数和(自身を含む): 137884032

約数和(自身を除く): 86532592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 749, 856, 857, 1070, 1498, 1712, 1714, 2140, 2996, 3428, 3745, 4280, 4285, 5992, 5999, 6856, 7490, 8560, 8570, 11984, 11998, 13712, 14980, 17140, 23996, 29960, 29995, 34280, 47992, 59920, 59990, 68560, 91699, 95984, 119980, 183398, 239960, 366796, 458495, 479920, 641893, 733592, 916990, 1283786, 1467184, 1833980, 2567572, 3209465, 3667960, 5135144, 6418930, 7335920, 10270288, 12837860, 25675720, 51351440]

約数ペア:

[(1, 51351440), (2, 25675720), (4, 12837860), (5, 10270288), (7, 7335920), (8, 6418930), (10, 5135144), (14, 3667960), (16, 3209465), (20, 2567572), (28, 1833980), (35, 1467184), (40, 1283786), (56, 916990), (70, 733592), (80, 641893), (107, 479920), (112, 458495), (140, 366796), (214, 239960), (280, 183398), (428, 119980), (535, 95984), (560, 91699), (749, 68560), (856, 59990), (857, 59920), (1070, 47992), (1498, 34280), (1712, 29995), (1714, 29960), (2140, 23996), (2996, 17140), (3428, 14980), (3745, 13712), (4280, 11998), (4285, 11984), (5992, 8570), (5999, 8560), (6856, 7490)]