157212920

素因数分解:

$2^3\times 5^1\times {\mathrm{3930323}}^1$

素因数の和:3930334

約数の個数: 16

約数和(自身を含む): 353729160

約数和(自身を除く): 196516240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3930323, 7860646, 15721292, 19651615, 31442584, 39303230, 78606460, 157212920]

約数ペア:

[(1, 157212920), (2, 78606460), (4, 39303230), (5, 31442584), (8, 19651615), (10, 15721292), (20, 7860646), (40, 3930323)]