28782440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{9857}}^1$

素因数の和:9941

約数の個数: 32

約数和(自身を含む): 65654280

約数和(自身を除く): 36871840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 9857, 19714, 39428, 49285, 78856, 98570, 197140, 394280, 719561, 1439122, 2878244, 3597805, 5756488, 7195610, 14391220, 28782440]

約数ペア:

[(1, 28782440), (2, 14391220), (4, 7195610), (5, 5756488), (8, 3597805), (10, 2878244), (20, 1439122), (40, 719561), (73, 394280), (146, 197140), (292, 98570), (365, 78856), (584, 49285), (730, 39428), (1460, 19714), (2920, 9857)]