8612440

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1549}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 19530000

約数和(自身を除く): 10917560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1549, 2780, 3098, 5560, 6196, 7745, 12392, 15490, 30980, 61960, 215311, 430622, 861244, 1076555, 1722488, 2153110, 4306220, 8612440]

約数ペア:

[(1, 8612440), (2, 4306220), (4, 2153110), (5, 1722488), (8, 1076555), (10, 861244), (20, 430622), (40, 215311), (139, 61960), (278, 30980), (556, 15490), (695, 12392), (1112, 7745), (1390, 6196), (1549, 5560), (2780, 3098)]