256817512

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{32993}}^1$

素因数の和:33145

約数の個数: 32

約数和(自身を含む): 554299200

約数和(自身を除く): 297481688

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 3892, 7784, 32993, 65986, 131972, 230951, 263944, 461902, 923804, 1847608, 4586027, 9172054, 18344108, 32102189, 36688216, 64204378, 128408756, 256817512]

約数ペア:

[(1, 256817512), (2, 128408756), (4, 64204378), (7, 36688216), (8, 32102189), (14, 18344108), (28, 9172054), (56, 4586027), (139, 1847608), (278, 923804), (556, 461902), (973, 263944), (1112, 230951), (1946, 131972), (3892, 65986), (7784, 32993)]