680405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 16

約数和(自身を含む): 907200

約数和(自身を除く): 226795

約数列:

[1, 5, 11, 55, 89, 139, 445, 695, 979, 1529, 4895, 7645, 12371, 61855, 136081, 680405]

約数ペア:

[(1, 680405), (5, 136081), (11, 61855), (55, 12371), (89, 7645), (139, 4895), (445, 1529), (695, 979)]