12840856

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{2143}}^1$

素因数の和:2263

約数の個数: 32

約数和(自身を含む): 27786240

約数和(自身を除く): 14945384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 214, 428, 749, 856, 1498, 2143, 2996, 4286, 5992, 8572, 15001, 17144, 30002, 60004, 120008, 229301, 458602, 917204, 1605107, 1834408, 3210214, 6420428, 12840856]

約数ペア:

[(1, 12840856), (2, 6420428), (4, 3210214), (7, 1834408), (8, 1605107), (14, 917204), (28, 458602), (56, 229301), (107, 120008), (214, 60004), (428, 30002), (749, 17144), (856, 15001), (1498, 8572), (2143, 5992), (2996, 4286)]