281020390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{573511}}^1$

素因数の和:573532

約数の個数: 24

約数和(自身を含む): 588423312

約数和(自身を除く): 307402922

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 573511, 1147022, 2867555, 4014577, 5735110, 8029154, 20072885, 28102039, 40145770, 56204078, 140510195, 281020390]

約数ペア:

[(1, 281020390), (2, 140510195), (5, 56204078), (7, 40145770), (10, 28102039), (14, 20072885), (35, 8029154), (49, 5735110), (70, 4014577), (98, 2867555), (245, 1147022), (490, 573511)]