8789920

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{401}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 20969928

約数和(自身を除く): 12180008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 401, 548, 685, 802, 1096, 1370, 1604, 2005, 2192, 2740, 3208, 4010, 4384, 5480, 6416, 8020, 10960, 12832, 16040, 21920, 32080, 54937, 64160, 109874, 219748, 274685, 439496, 549370, 878992, 1098740, 1757984, 2197480, 4394960, 8789920]

約数ペア:

[(1, 8789920), (2, 4394960), (4, 2197480), (5, 1757984), (8, 1098740), (10, 878992), (16, 549370), (20, 439496), (32, 274685), (40, 219748), (80, 109874), (137, 64160), (160, 54937), (274, 32080), (401, 21920), (548, 16040), (685, 12832), (802, 10960), (1096, 8020), (1370, 6416), (1604, 5480), (2005, 4384), (2192, 4010), (2740, 3208)]