20834960

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1901}}^1$

素因数の和:2051

約数の個数: 40

約数和(自身を含む): 48820536

約数和(自身を除く): 27985576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 1901, 2192, 2740, 3802, 5480, 7604, 9505, 10960, 15208, 19010, 30416, 38020, 76040, 152080, 260437, 520874, 1041748, 1302185, 2083496, 2604370, 4166992, 5208740, 10417480, 20834960]

約数ペア:

[(1, 20834960), (2, 10417480), (4, 5208740), (5, 4166992), (8, 2604370), (10, 2083496), (16, 1302185), (20, 1041748), (40, 520874), (80, 260437), (137, 152080), (274, 76040), (548, 38020), (685, 30416), (1096, 19010), (1370, 15208), (1901, 10960), (2192, 9505), (2740, 7604), (3802, 5480)]