20161040

素因数分解:

$2^4\times 5^1\times {\mathrm{252013}}^1$

素因数の和:252026

約数の個数: 20

約数和(自身を含む): 46874604

約数和(自身を除く): 26713564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252013, 504026, 1008052, 1260065, 2016104, 2520130, 4032208, 5040260, 10080520, 20161040]

約数ペア:

[(1, 20161040), (2, 10080520), (4, 5040260), (5, 4032208), (8, 2520130), (10, 2016104), (16, 1260065), (20, 1008052), (40, 504026), (80, 252013)]