68804564420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{17287579}}^1$

素因数の和:17287787

約数の個数: 24

約数和(自身を含む): 145215672000

約数和(自身を除く): 76411107580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 17287579, 34575158, 69150316, 86437895, 172875790, 345751580, 3440228221, 6880456442, 13760912884, 17201141105, 34402282210, 68804564420]

約数ペア:

[(1, 68804564420), (2, 34402282210), (4, 17201141105), (5, 13760912884), (10, 6880456442), (20, 3440228221), (199, 345751580), (398, 172875790), (796, 86437895), (995, 69150316), (1990, 34575158), (3980, 17287579)]