278711140

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{16223}}^1$

素因数の和:17091

約数の個数: 24

約数和(自身を含む): 586010880

約数和(自身を除く): 307299740

約数列:

[1, 2, 4, 5, 10, 20, 859, 1718, 3436, 4295, 8590, 16223, 17180, 32446, 64892, 81115, 162230, 324460, 13935557, 27871114, 55742228, 69677785, 139355570, 278711140]

約数ペア:

[(1, 278711140), (2, 139355570), (4, 69677785), (5, 55742228), (10, 27871114), (20, 13935557), (859, 324460), (1718, 162230), (3436, 81115), (4295, 64892), (8590, 32446), (16223, 17180)]