20380514

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 18919390

約数列:

[1, 2, 7, 11, 14, 22, 53, 77, 106, 121, 154, 227, 242, 371, 454, 583, 742, 847, 1166, 1589, 1694, 2497, 3178, 4081, 4994, 6413, 8162, 12031, 12826, 17479, 24062, 27467, 34958, 44891, 54934, 84217, 89782, 132341, 168434, 192269, 264682, 384538, 926387, 1455751, 1852774, 2911502, 10190257, 20380514]

約数ペア:

[(1, 20380514), (2, 10190257), (7, 2911502), (11, 1852774), (14, 1455751), (22, 926387), (53, 384538), (77, 264682), (106, 192269), (121, 168434), (154, 132341), (227, 89782), (242, 84217), (371, 54934), (454, 44891), (583, 34958), (742, 27467), (847, 24062), (1166, 17479), (1589, 12826), (1694, 12031), (2497, 8162), (3178, 6413), (4081, 4994)]