19230820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137363}}^1$

素因数の和:137379

約数の個数: 24

約数和(自身を含む): 46154304

約数和(自身を除く): 26923484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 137363, 274726, 549452, 686815, 961541, 1373630, 1923082, 2747260, 3846164, 4807705, 9615410, 19230820]

約数ペア:

[(1, 19230820), (2, 9615410), (4, 4807705), (5, 3846164), (7, 2747260), (10, 1923082), (14, 1373630), (20, 961541), (28, 686815), (35, 549452), (70, 274726), (140, 137363)]