128278808

素因数分解:

$2^3\times 7^1\times {\mathrm{173}}^1\times {\mathrm{13241}}^1$

素因数の和:13427

約数の個数: 32

約数和(自身を含む): 276492960

約数和(自身を除く): 148214152

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 173, 346, 692, 1211, 1384, 2422, 4844, 9688, 13241, 26482, 52964, 92687, 105928, 185374, 370748, 741496, 2290693, 4581386, 9162772, 16034851, 18325544, 32069702, 64139404, 128278808]

約数ペア:

[(1, 128278808), (2, 64139404), (4, 32069702), (7, 18325544), (8, 16034851), (14, 9162772), (28, 4581386), (56, 2290693), (173, 741496), (346, 370748), (692, 185374), (1211, 105928), (1384, 92687), (2422, 52964), (4844, 26482), (9688, 13241)]