72813640

素因数分解:

$2^3\times 5^1\times {\mathrm{1820341}}^1$

素因数の和:1820352

約数の個数: 16

約数和(自身を含む): 163830780

約数和(自身を除く): 91017140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1820341, 3640682, 7281364, 9101705, 14562728, 18203410, 36406820, 72813640]

約数ペア:

[(1, 72813640), (2, 36406820), (4, 18203410), (5, 14562728), (8, 9101705), (10, 7281364), (20, 3640682), (40, 1820341)]