278005540

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{109451}}^1$

素因数の和:109587

約数の個数: 24

約数和(自身を含む): 588413952

約数和(自身を除く): 310408412

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 109451, 218902, 437804, 547255, 1094510, 2189020, 13900277, 27800554, 55601108, 69501385, 139002770, 278005540]

約数ペア:

[(1, 278005540), (2, 139002770), (4, 69501385), (5, 55601108), (10, 27800554), (20, 13900277), (127, 2189020), (254, 1094510), (508, 547255), (635, 437804), (1270, 218902), (2540, 109451)]