39403990

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{19801}}^1$

素因数の和:20007

約数の個数: 16

約数和(自身を含む): 71287200

約数和(自身を除く): 31883210

約数列:

[1, 2, 5, 10, 199, 398, 995, 1990, 19801, 39602, 99005, 198010, 3940399, 7880798, 19701995, 39403990]

約数ペア:

[(1, 39403990), (2, 19701995), (5, 7880798), (10, 3940399), (199, 198010), (398, 99005), (995, 39602), (1990, 19801)]