20104280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3779}}^1$

素因数の和:3816

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 34327720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 3779, 5320, 7558, 15116, 18895, 26453, 30232, 37790, 52906, 71801, 75580, 105812, 132265, 143602, 151160, 211624, 264530, 287204, 359005, 502607, 529060, 574408, 718010, 1005214, 1058120, 1436020, 2010428, 2513035, 2872040, 4020856, 5026070, 10052140, 20104280]

約数ペア:

[(1, 20104280), (2, 10052140), (4, 5026070), (5, 4020856), (7, 2872040), (8, 2513035), (10, 2010428), (14, 1436020), (19, 1058120), (20, 1005214), (28, 718010), (35, 574408), (38, 529060), (40, 502607), (56, 359005), (70, 287204), (76, 264530), (95, 211624), (133, 151160), (140, 143602), (152, 132265), (190, 105812), (266, 75580), (280, 71801), (380, 52906), (532, 37790), (665, 30232), (760, 26453), (1064, 18895), (1330, 15116), (2660, 7558), (3779, 5320)]