158989827280

素因数分解:

$2^4\times 5^1\times {\mathrm{1987372841}}^1$

素因数の和:1987372854

約数の個数: 20

約数和(自身を含む): 369651348612

約数和(自身を除く): 210661521332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1987372841, 3974745682, 7949491364, 9936864205, 15898982728, 19873728410, 31797965456, 39747456820, 79494913640, 158989827280]

約数ペア:

[(1, 158989827280), (2, 79494913640), (4, 39747456820), (5, 31797965456), (8, 19873728410), (10, 15898982728), (16, 9936864205), (20, 7949491364), (40, 3974745682), (80, 1987372841)]