64861880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{34501}}^1$

素因数の和:34559

約数の個数: 32

約数和(自身を含む): 149048640

約数和(自身を除く): 84186760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 34501, 69002, 138004, 172505, 276008, 345010, 690020, 1380040, 1621547, 3243094, 6486188, 8107735, 12972376, 16215470, 32430940, 64861880]

約数ペア:

[(1, 64861880), (2, 32430940), (4, 16215470), (5, 12972376), (8, 8107735), (10, 6486188), (20, 3243094), (40, 1621547), (47, 1380040), (94, 690020), (188, 345010), (235, 276008), (376, 172505), (470, 138004), (940, 69002), (1880, 34501)]