68001280

素因数分解:

$2^9\times 5^1\times {\mathrm{101}}^1\times {\mathrm{263}}^1$

素因数の和:387

約数の個数: 80

約数和(自身を含む): 165284064

約数和(自身を除く): 97282784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 263, 320, 404, 505, 512, 526, 640, 808, 1010, 1052, 1280, 1315, 1616, 2020, 2104, 2560, 2630, 3232, 4040, 4208, 5260, 6464, 8080, 8416, 10520, 12928, 16160, 16832, 21040, 25856, 26563, 32320, 33664, 42080, 51712, 53126, 64640, 67328, 84160, 106252, 129280, 132815, 134656, 168320, 212504, 258560, 265630, 336640, 425008, 531260, 673280, 850016, 1062520, 1700032, 2125040, 3400064, 4250080, 6800128, 8500160, 13600256, 17000320, 34000640, 68001280]

約数ペア:

[(1, 68001280), (2, 34000640), (4, 17000320), (5, 13600256), (8, 8500160), (10, 6800128), (16, 4250080), (20, 3400064), (32, 2125040), (40, 1700032), (64, 1062520), (80, 850016), (101, 673280), (128, 531260), (160, 425008), (202, 336640), (256, 265630), (263, 258560), (320, 212504), (404, 168320), (505, 134656), (512, 132815), (526, 129280), (640, 106252), (808, 84160), (1010, 67328), (1052, 64640), (1280, 53126), (1315, 51712), (1616, 42080), (2020, 33664), (2104, 32320), (2560, 26563), (2630, 25856), (3232, 21040), (4040, 16832), (4208, 16160), (5260, 12928), (6464, 10520), (8080, 8416)]