68605640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{39887}}^1$

素因数の和:39941

約数の個数: 32

約数和(自身を含む): 157956480

約数和(自身を除く): 89350840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 39887, 79774, 159548, 199435, 319096, 398870, 797740, 1595480, 1715141, 3430282, 6860564, 8575705, 13721128, 17151410, 34302820, 68605640]

約数ペア:

[(1, 68605640), (2, 34302820), (4, 17151410), (5, 13721128), (8, 8575705), (10, 6860564), (20, 3430282), (40, 1715141), (43, 1595480), (86, 797740), (172, 398870), (215, 319096), (344, 199435), (430, 159548), (860, 79774), (1720, 39887)]