20453320

素因数分解:

$2^3\times 5^1\times {\mathrm{511333}}^1$

素因数の和:511344

約数の個数: 16

約数和(自身を含む): 46020060

約数和(自身を除く): 25566740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 511333, 1022666, 2045332, 2556665, 4090664, 5113330, 10226660, 20453320]

約数ペア:

[(1, 20453320), (2, 10226660), (4, 5113330), (5, 4090664), (8, 2556665), (10, 2045332), (20, 1022666), (40, 511333)]