51672080

素因数分解:

$2^4\times 5^1\times {\mathrm{645901}}^1$

素因数の和:645914

約数の個数: 20

約数和(自身を含む): 120137772

約数和(自身を除く): 68465692

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 645901, 1291802, 2583604, 3229505, 5167208, 6459010, 10334416, 12918020, 25836040, 51672080]

約数ペア:

[(1, 51672080), (2, 25836040), (4, 12918020), (5, 10334416), (8, 6459010), (10, 5167208), (16, 3229505), (20, 2583604), (40, 1291802), (80, 645901)]