31307248

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2011}}^1$

素因数の和:2165

約数の個数: 40

約数和(自身を含む): 69856640

約数和(自身を除く): 38549392

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 2011, 2224, 3892, 4022, 7784, 8044, 14077, 15568, 16088, 28154, 32176, 56308, 112616, 225232, 279529, 559058, 1118116, 1956703, 2236232, 3913406, 4472464, 7826812, 15653624, 31307248]

約数ペア:

[(1, 31307248), (2, 15653624), (4, 7826812), (7, 4472464), (8, 3913406), (14, 2236232), (16, 1956703), (28, 1118116), (56, 559058), (112, 279529), (139, 225232), (278, 112616), (556, 56308), (973, 32176), (1112, 28154), (1946, 16088), (2011, 15568), (2224, 14077), (3892, 8044), (4022, 7784)]