68970280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{40099}}^1$

素因数の和:40153

約数の個数: 32

約数和(自身を含む): 158796000

約数和(自身を除く): 89825720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 40099, 80198, 160396, 200495, 320792, 400990, 801980, 1603960, 1724257, 3448514, 6897028, 8621285, 13794056, 17242570, 34485140, 68970280]

約数ペア:

[(1, 68970280), (2, 34485140), (4, 17242570), (5, 13794056), (8, 8621285), (10, 6897028), (20, 3448514), (40, 1724257), (43, 1603960), (86, 801980), (172, 400990), (215, 320792), (344, 200495), (430, 160396), (860, 80198), (1720, 40099)]