39439640

素因数分解:

$2^3\times 5^1\times {\mathrm{985991}}^1$

素因数の和:986002

約数の個数: 16

約数和(自身を含む): 88739280

約数和(自身を除く): 49299640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 985991, 1971982, 3943964, 4929955, 7887928, 9859910, 19719820, 39439640]

約数ペア:

[(1, 39439640), (2, 19719820), (4, 9859910), (5, 7887928), (8, 4929955), (10, 3943964), (20, 1971982), (40, 985991)]