39930740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{22433}}^1$

素因数の和:22531

約数の個数: 24

約数和(自身を含む): 84800520

約数和(自身を除く): 44869780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 22433, 44866, 89732, 112165, 224330, 448660, 1996537, 3993074, 7986148, 9982685, 19965370, 39930740]

約数ペア:

[(1, 39930740), (2, 19965370), (4, 9982685), (5, 7986148), (10, 3993074), (20, 1996537), (89, 448660), (178, 224330), (356, 112165), (445, 89732), (890, 44866), (1780, 22433)]