128575804

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{3109}}^1$

素因数の和:3338

約数の個数: 36

約数和(自身を含む): 263068680

約数和(自身を除く): 134492876

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 844, 1477, 2954, 3109, 5908, 6218, 10339, 12436, 20678, 21763, 41356, 43526, 87052, 152341, 304682, 609364, 655999, 1311998, 2623996, 4591993, 9183986, 18367972, 32143951, 64287902, 128575804]

約数ペア:

[(1, 128575804), (2, 64287902), (4, 32143951), (7, 18367972), (14, 9183986), (28, 4591993), (49, 2623996), (98, 1311998), (196, 655999), (211, 609364), (422, 304682), (844, 152341), (1477, 87052), (2954, 43526), (3109, 41356), (5908, 21763), (6218, 20678), (10339, 12436)]