17663120

素因数分解:

$2^4\times 5^1\times {\mathrm{220789}}^1$

素因数の和:220802

約数の個数: 20

約数和(自身を含む): 41066940

約数和(自身を除く): 23403820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 220789, 441578, 883156, 1103945, 1766312, 2207890, 3532624, 4415780, 8831560, 17663120]

約数ペア:

[(1, 17663120), (2, 8831560), (4, 4415780), (5, 3532624), (8, 2207890), (10, 1766312), (16, 1103945), (20, 883156), (40, 441578), (80, 220789)]