25355960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{661}}^1$

素因数の和:816

約数の個数: 64

約数和(自身を含む): 65776320

約数和(自身を除く): 40420360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 274, 280, 548, 661, 685, 959, 1096, 1322, 1370, 1918, 2644, 2740, 3305, 3836, 4627, 4795, 5288, 5480, 6610, 7672, 9254, 9590, 13220, 18508, 19180, 23135, 26440, 37016, 38360, 46270, 90557, 92540, 181114, 185080, 362228, 452785, 633899, 724456, 905570, 1267798, 1811140, 2535596, 3169495, 3622280, 5071192, 6338990, 12677980, 25355960]

約数ペア:

[(1, 25355960), (2, 12677980), (4, 6338990), (5, 5071192), (7, 3622280), (8, 3169495), (10, 2535596), (14, 1811140), (20, 1267798), (28, 905570), (35, 724456), (40, 633899), (56, 452785), (70, 362228), (137, 185080), (140, 181114), (274, 92540), (280, 90557), (548, 46270), (661, 38360), (685, 37016), (959, 26440), (1096, 23135), (1322, 19180), (1370, 18508), (1918, 13220), (2644, 9590), (2740, 9254), (3305, 7672), (3836, 6610), (4627, 5480), (4795, 5288)]