638512

素因数分解:

$2^4\times 7^1\times {\mathrm{5701}}^1$

素因数の和:5716

約数の個数: 20

約数和(自身を含む): 1414096

約数和(自身を除く): 775584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5701, 11402, 22804, 39907, 45608, 79814, 91216, 159628, 319256, 638512]

約数ペア:

[(1, 638512), (2, 319256), (4, 159628), (7, 91216), (8, 79814), (14, 45608), (16, 39907), (28, 22804), (56, 11402), (112, 5701)]