80940280

素因数分解:

$2^3\times 5^1\times {\mathrm{2023507}}^1$

素因数の和:2023518

約数の個数: 16

約数和(自身を含む): 182115720

約数和(自身を除く): 101175440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2023507, 4047014, 8094028, 10117535, 16188056, 20235070, 40470140, 80940280]

約数ペア:

[(1, 80940280), (2, 40470140), (4, 20235070), (5, 16188056), (8, 10117535), (10, 8094028), (20, 4047014), (40, 2023507)]