84357640

素因数分解:

$2^3\times 5^1\times {\mathrm{2108941}}^1$

素因数の和:2108952

約数の個数: 16

約数和(自身を含む): 189804780

約数和(自身を除く): 105447140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2108941, 4217882, 8435764, 10544705, 16871528, 21089410, 42178820, 84357640]

約数ペア:

[(1, 84357640), (2, 42178820), (4, 21089410), (5, 16871528), (8, 10544705), (10, 8435764), (20, 4217882), (40, 2108941)]