388645960

素因数分解:

$2^3\times 5^1\times {\mathrm{859}}^1\times {\mathrm{11311}}^1$

素因数の和:12181

約数の個数: 32

約数和(自身を含む): 875548800

約数和(自身を除く): 486902840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 859, 1718, 3436, 4295, 6872, 8590, 11311, 17180, 22622, 34360, 45244, 56555, 90488, 113110, 226220, 452440, 9716149, 19432298, 38864596, 48580745, 77729192, 97161490, 194322980, 388645960]

約数ペア:

[(1, 388645960), (2, 194322980), (4, 97161490), (5, 77729192), (8, 48580745), (10, 38864596), (20, 19432298), (40, 9716149), (859, 452440), (1718, 226220), (3436, 113110), (4295, 90488), (6872, 56555), (8590, 45244), (11311, 34360), (17180, 22622)]