30768520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7057}}^1$

素因数の和:7177

約数の個数: 32

約数和(自身を含む): 69874200

約数和(自身を除く): 39105680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 7057, 14114, 28228, 35285, 56456, 70570, 141140, 282280, 769213, 1538426, 3076852, 3846065, 6153704, 7692130, 15384260, 30768520]

約数ペア:

[(1, 30768520), (2, 15384260), (4, 7692130), (5, 6153704), (8, 3846065), (10, 3076852), (20, 1538426), (40, 769213), (109, 282280), (218, 141140), (436, 70570), (545, 56456), (872, 35285), (1090, 28228), (2180, 14114), (4360, 7057)]