280141295

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 391910400

約数和(自身を除く): 111769105

約数列:

[1, 5, 7, 35, 89, 139, 445, 623, 647, 695, 973, 3115, 3235, 4529, 4865, 12371, 22645, 57583, 61855, 86597, 89933, 287915, 403081, 432985, 449665, 629531, 2015405, 3147655, 8004037, 40020185, 56028259, 280141295]

約数ペア:

[(1, 280141295), (5, 56028259), (7, 40020185), (35, 8004037), (89, 3147655), (139, 2015405), (445, 629531), (623, 449665), (647, 432985), (695, 403081), (973, 287915), (3115, 89933), (3235, 86597), (4529, 61855), (4865, 57583), (12371, 22645)]