157440340

素因数分解:

$2^2\times 5^1\times {\mathrm{7872017}}^1$

素因数の和:7872026

約数の個数: 12

約数和(自身を含む): 330624756

約数和(自身を除く): 173184416

約数列:

[1, 2, 4, 5, 10, 20, 7872017, 15744034, 31488068, 39360085, 78720170, 157440340]

約数ペア:

[(1, 157440340), (2, 78720170), (4, 39360085), (5, 31488068), (10, 15744034), (20, 7872017)]