81477718

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1$

素因数の和:724

約数の個数: 32

約数和(自身を含む): 142560000

約数和(自身を除く): 61082282

約数列:

[1, 2, 7, 14, 107, 109, 214, 218, 499, 749, 763, 998, 1498, 1526, 3493, 6986, 11663, 23326, 53393, 54391, 81641, 106786, 108782, 163282, 373751, 380737, 747502, 761474, 5819837, 11639674, 40738859, 81477718]

約数ペア:

[(1, 81477718), (2, 40738859), (7, 11639674), (14, 5819837), (107, 761474), (109, 747502), (214, 380737), (218, 373751), (499, 163282), (749, 108782), (763, 106786), (998, 81641), (1498, 54391), (1526, 53393), (3493, 23326), (6986, 11663)]