68904100

素因数分解:

$2^2\times 5^2\times {\mathrm{689041}}^1$

素因数の和:689055

約数の個数: 18

約数和(自身を含む): 149522114

約数和(自身を除く): 80618014

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 689041, 1378082, 2756164, 3445205, 6890410, 13780820, 17226025, 34452050, 68904100]

約数ペア:

[(1, 68904100), (2, 34452050), (4, 17226025), (5, 13780820), (10, 6890410), (20, 3445205), (25, 2756164), (50, 1378082), (100, 689041)]