638616580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4561547}}^1$

素因数の和:4561563

約数の個数: 24

約数和(自身を含む): 1532680128

約数和(自身を除く): 894063548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4561547, 9123094, 18246188, 22807735, 31930829, 45615470, 63861658, 91230940, 127723316, 159654145, 319308290, 638616580]

約数ペア:

[(1, 638616580), (2, 319308290), (4, 159654145), (5, 127723316), (7, 91230940), (10, 63861658), (14, 45615470), (20, 31930829), (28, 22807735), (35, 18246188), (70, 9123094), (140, 4561547)]