131305120

素因数分解:

$2^5\times 5^1\times {\mathrm{820657}}^1$

素因数の和:820672

約数の個数: 24

約数和(自身を含む): 310208724

約数和(自身を除く): 178903604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 820657, 1641314, 3282628, 4103285, 6565256, 8206570, 13130512, 16413140, 26261024, 32826280, 65652560, 131305120]

約数ペア:

[(1, 131305120), (2, 65652560), (4, 32826280), (5, 26261024), (8, 16413140), (10, 13130512), (16, 8206570), (20, 6565256), (32, 4103285), (40, 3282628), (80, 1641314), (160, 820657)]