40392080

素因数分解:

$2^4\times 5^1\times {\mathrm{504901}}^1$

素因数の和:504914

約数の個数: 20

約数和(自身を含む): 93911772

約数和(自身を除く): 53519692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 504901, 1009802, 2019604, 2524505, 4039208, 5049010, 8078416, 10098020, 20196040, 40392080]

約数ペア:

[(1, 40392080), (2, 20196040), (4, 10098020), (5, 8078416), (8, 5049010), (10, 4039208), (16, 2524505), (20, 2019604), (40, 1009802), (80, 504901)]