4080785780

素因数分解:

$2^2\times 5^1\times {\mathrm{204039289}}^1$

素因数の和:204039298

約数の個数: 12

約数和(自身を含む): 8569650180

約数和(自身を除く): 4488864400

約数列:

[1, 2, 4, 5, 10, 20, 204039289, 408078578, 816157156, 1020196445, 2040392890, 4080785780]

約数ペア:

[(1, 4080785780), (2, 2040392890), (4, 1020196445), (5, 816157156), (10, 408078578), (20, 204039289)]