395194640

素因数分解:

$2^4\times 5^1\times {\mathrm{4939933}}^1$

素因数の和:4939946

約数の個数: 20

約数和(自身を含む): 918827724

約数和(自身を除く): 523633084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4939933, 9879866, 19759732, 24699665, 39519464, 49399330, 79038928, 98798660, 197597320, 395194640]

約数ペア:

[(1, 395194640), (2, 197597320), (4, 98798660), (5, 79038928), (8, 49399330), (10, 39519464), (16, 24699665), (20, 19759732), (40, 9879866), (80, 4939933)]