201581390

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{64403}}^1$

素因数の和:64723

約数の個数: 16

約数和(自身を含む): 364011408

約数和(自身を除く): 162430018

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 64403, 128806, 322015, 644030, 20158139, 40316278, 100790695, 201581390]

約数ペア:

[(1, 201581390), (2, 100790695), (5, 40316278), (10, 20158139), (313, 644030), (626, 322015), (1565, 128806), (3130, 64403)]