81496816

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{32443}}^1$

素因数の和:32608

約数の個数: 20

約数和(自身を含む): 158910712

約数和(自身を除く): 77413896

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 32443, 64886, 129772, 259544, 519088, 5093551, 10187102, 20374204, 40748408, 81496816]

約数ペア:

[(1, 81496816), (2, 40748408), (4, 20374204), (8, 10187102), (16, 5093551), (157, 519088), (314, 259544), (628, 129772), (1256, 64886), (2512, 32443)]