888220

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{499}}^1$

素因数の和:597

約数の個数: 24

約数和(自身を含む): 1890000

約数和(自身を除く): 1001780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 499, 890, 998, 1780, 1996, 2495, 4990, 9980, 44411, 88822, 177644, 222055, 444110, 888220]

約数ペア:

[(1, 888220), (2, 444110), (4, 222055), (5, 177644), (10, 88822), (20, 44411), (89, 9980), (178, 4990), (356, 2495), (445, 1996), (499, 1780), (890, 998)]