396745580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257627}}^1$

素因数の和:257654

約数の個数: 48

約数和(自身を含む): 1038756096

約数和(自身を除く): 642010516

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 257627, 515254, 1030508, 1288135, 1803389, 2576270, 2833897, 3606778, 5152540, 5667794, 7213556, 9016945, 11335588, 14169485, 18033890, 19837279, 28338970, 36067780, 39674558, 56677940, 79349116, 99186395, 198372790, 396745580]

約数ペア:

[(1, 396745580), (2, 198372790), (4, 99186395), (5, 79349116), (7, 56677940), (10, 39674558), (11, 36067780), (14, 28338970), (20, 19837279), (22, 18033890), (28, 14169485), (35, 11335588), (44, 9016945), (55, 7213556), (70, 5667794), (77, 5152540), (110, 3606778), (140, 2833897), (154, 2576270), (220, 1803389), (308, 1288135), (385, 1030508), (770, 515254), (1540, 257627)]