380038420

素因数分解:

$2^2\times 5^1\times {\mathrm{19001921}}^1$

素因数の和:19001930

約数の個数: 12

約数和(自身を含む): 798080724

約数和(自身を除く): 418042304

約数列:

[1, 2, 4, 5, 10, 20, 19001921, 38003842, 76007684, 95009605, 190019210, 380038420]

約数ペア:

[(1, 380038420), (2, 190019210), (4, 95009605), (5, 76007684), (10, 38003842), (20, 19001921)]