2506505

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:296

約数の個数: 16

約数和(自身を含む): 3154944

約数和(自身を除く): 648439

約数列:

[1, 5, 31, 103, 155, 157, 515, 785, 3193, 4867, 15965, 16171, 24335, 80855, 501301, 2506505]

約数ペア:

[(1, 2506505), (5, 501301), (31, 80855), (103, 24335), (155, 16171), (157, 15965), (515, 4867), (785, 3193)]