256220785

素因数分解:

$5^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{2131}}^1$

素因数の和:2448

約数の個数: 16

約数和(自身を含む): 311613120

約数和(自身を除く): 55392335

約数列:

[1, 5, 139, 173, 695, 865, 2131, 10655, 24047, 120235, 296209, 368663, 1481045, 1843315, 51244157, 256220785]

約数ペア:

[(1, 256220785), (5, 51244157), (139, 1843315), (173, 1481045), (695, 368663), (865, 296209), (2131, 120235), (10655, 24047)]