6480820

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1291}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 13674528

約数和(自身を除く): 7193708

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 1291, 2510, 2582, 5020, 5164, 6455, 12910, 25820, 324041, 648082, 1296164, 1620205, 3240410, 6480820]

約数ペア:

[(1, 6480820), (2, 3240410), (4, 1620205), (5, 1296164), (10, 648082), (20, 324041), (251, 25820), (502, 12910), (1004, 6455), (1255, 5164), (1291, 5020), (2510, 2582)]