208506505

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{7639}}^1$

素因数の和:7800

約数の個数: 16

約数和(自身を含む): 257437440

約数和(自身を除く): 48930935

約数列:

[1, 5, 53, 103, 265, 515, 5459, 7639, 27295, 38195, 404867, 786817, 2024335, 3934085, 41701301, 208506505]

約数ペア:

[(1, 208506505), (5, 41701301), (53, 3934085), (103, 2024335), (265, 786817), (515, 404867), (5459, 38195), (7639, 27295)]