219216880

素因数分解:

$2^4\times 5^1\times {\mathrm{2740211}}^1$

素因数の和:2740224

約数の個数: 20

約数和(自身を含む): 509679432

約数和(自身を除く): 290462552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2740211, 5480422, 10960844, 13701055, 21921688, 27402110, 43843376, 54804220, 109608440, 219216880]

約数ペア:

[(1, 219216880), (2, 109608440), (4, 54804220), (5, 43843376), (8, 27402110), (10, 21921688), (16, 13701055), (20, 10960844), (40, 5480422), (80, 2740211)]