128991868

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{8191}}^1$

素因数の和:8353

約数の個数: 24

約数和(自身を含む): 234881024

約数和(自身を除く): 105889156

約数列:

[1, 2, 4, 31, 62, 124, 127, 254, 508, 3937, 7874, 8191, 15748, 16382, 32764, 253921, 507842, 1015684, 1040257, 2080514, 4161028, 32247967, 64495934, 128991868]

約数ペア:

[(1, 128991868), (2, 64495934), (4, 32247967), (31, 4161028), (62, 2080514), (124, 1040257), (127, 1015684), (254, 507842), (508, 253921), (3937, 32764), (7874, 16382), (8191, 15748)]