42609620

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5209}}^1$

素因数の和:5627

約数の個数: 24

約数和(自身を含む): 89716200

約数和(自身を除く): 47106580

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 5209, 8180, 10418, 20836, 26045, 52090, 104180, 2130481, 4260962, 8521924, 10652405, 21304810, 42609620]

約数ペア:

[(1, 42609620), (2, 21304810), (4, 10652405), (5, 8521924), (10, 4260962), (20, 2130481), (409, 104180), (818, 52090), (1636, 26045), (2045, 20836), (4090, 10418), (5209, 8180)]