3986780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28477}}^1$

素因数の和:28493

約数の個数: 24

約数和(自身を含む): 9568608

約数和(自身を除く): 5581828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28477, 56954, 113908, 142385, 199339, 284770, 398678, 569540, 797356, 996695, 1993390, 3986780]

約数ペア:

[(1, 3986780), (2, 1993390), (4, 996695), (5, 797356), (7, 569540), (10, 398678), (14, 284770), (20, 199339), (28, 142385), (35, 113908), (70, 56954), (140, 28477)]