2018218960

素因数分解:

$2^4\times 5^1\times {\mathrm{2503}}^1\times {\mathrm{10079}}^1$

素因数の和:12595

約数の個数: 40

約数和(自身を含む): 4694699520

約数和(自身を除く): 2676480560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2503, 5006, 10012, 10079, 12515, 20024, 20158, 25030, 40048, 40316, 50060, 50395, 80632, 100120, 100790, 161264, 200240, 201580, 403160, 806320, 25227737, 50455474, 100910948, 126138685, 201821896, 252277370, 403643792, 504554740, 1009109480, 2018218960]

約数ペア:

[(1, 2018218960), (2, 1009109480), (4, 504554740), (5, 403643792), (8, 252277370), (10, 201821896), (16, 126138685), (20, 100910948), (40, 50455474), (80, 25227737), (2503, 806320), (5006, 403160), (10012, 201580), (10079, 200240), (12515, 161264), (20024, 100790), (20158, 100120), (25030, 80632), (40048, 50395), (40316, 50060)]