42940220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10789}}^1$

素因数の和:10997

約数の個数: 24

約数和(自身を含む): 90636000

約数和(自身を除く): 47695780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 10789, 21578, 43156, 53945, 107890, 215780, 2147011, 4294022, 8588044, 10735055, 21470110, 42940220]

約数ペア:

[(1, 42940220), (2, 21470110), (4, 10735055), (5, 8588044), (10, 4294022), (20, 2147011), (199, 215780), (398, 107890), (796, 53945), (995, 43156), (1990, 21578), (3980, 10789)]