12801520

素因数分解:

$2^4\times 5^1\times {\mathrm{160019}}^1$

素因数の和:160032

約数の個数: 20

約数和(自身を含む): 29763720

約数和(自身を除く): 16962200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160019, 320038, 640076, 800095, 1280152, 1600190, 2560304, 3200380, 6400760, 12801520]

約数ペア:

[(1, 12801520), (2, 6400760), (4, 3200380), (5, 2560304), (8, 1600190), (10, 1280152), (16, 800095), (20, 640076), (40, 320038), (80, 160019)]