40906640

素因数分解:

$2^4\times 5^1\times {\mathrm{511333}}^1$

素因数の和:511346

約数の個数: 20

約数和(自身を含む): 95108124

約数和(自身を除く): 54201484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511333, 1022666, 2045332, 2556665, 4090664, 5113330, 8181328, 10226660, 20453320, 40906640]

約数ペア:

[(1, 40906640), (2, 20453320), (4, 10226660), (5, 8181328), (8, 5113330), (10, 4090664), (16, 2556665), (20, 2045332), (40, 1022666), (80, 511333)]