18560816

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1627}}^1$

素因数の和:1689

約数の個数: 40

約数和(自身を含む): 38759424

約数和(自身を除く): 20198608

約数列:

[1, 2, 4, 8, 16, 23, 31, 46, 62, 92, 124, 184, 248, 368, 496, 713, 1426, 1627, 2852, 3254, 5704, 6508, 11408, 13016, 26032, 37421, 50437, 74842, 100874, 149684, 201748, 299368, 403496, 598736, 806992, 1160051, 2320102, 4640204, 9280408, 18560816]

約数ペア:

[(1, 18560816), (2, 9280408), (4, 4640204), (8, 2320102), (16, 1160051), (23, 806992), (31, 598736), (46, 403496), (62, 299368), (92, 201748), (124, 149684), (184, 100874), (248, 74842), (368, 50437), (496, 37421), (713, 26032), (1426, 13016), (1627, 11408), (2852, 6508), (3254, 5704)]