6518740

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 13740552

約数和(自身を除く): 7221812

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 821, 1588, 1642, 1985, 3284, 3970, 4105, 7940, 8210, 16420, 325937, 651874, 1303748, 1629685, 3259370, 6518740]

約数ペア:

[(1, 6518740), (2, 3259370), (4, 1629685), (5, 1303748), (10, 651874), (20, 325937), (397, 16420), (794, 8210), (821, 7940), (1588, 4105), (1642, 3970), (1985, 3284)]