406750820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2905363}}^1$

素因数の和:2905379

約数の個数: 24

約数和(自身を含む): 976202304

約数和(自身を除く): 569451484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2905363, 5810726, 11621452, 14526815, 20337541, 29053630, 40675082, 58107260, 81350164, 101687705, 203375410, 406750820]

約数ペア:

[(1, 406750820), (2, 203375410), (4, 101687705), (5, 81350164), (7, 58107260), (10, 40675082), (14, 29053630), (20, 20337541), (28, 14526815), (35, 11621452), (70, 5810726), (140, 2905363)]