2220550

素因数分解:

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

素因数の和:600

約数の個数: 24

約数和(自身を含む): 4185000

約数和(自身を除く): 1964450

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 499, 890, 998, 2225, 2495, 4450, 4990, 12475, 24950, 44411, 88822, 222055, 444110, 1110275, 2220550]

約数ペア:

[(1, 2220550), (2, 1110275), (5, 444110), (10, 222055), (25, 88822), (50, 44411), (89, 24950), (178, 12475), (445, 4990), (499, 4450), (890, 2495), (998, 2225)]