20807846720

素因数分解:

$2^6\times 5^1\times {\mathrm{65024521}}^1$

素因数の和:65024538

約数の個数: 28

約数和(自身を含む): 49548685764

約数和(自身を除く): 28740839044

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65024521, 130049042, 260098084, 325122605, 520196168, 650245210, 1040392336, 1300490420, 2080784672, 2600980840, 4161569344, 5201961680, 10403923360, 20807846720]

約数ペア:

[(1, 20807846720), (2, 10403923360), (4, 5201961680), (5, 4161569344), (8, 2600980840), (10, 2080784672), (16, 1300490420), (20, 1040392336), (32, 650245210), (40, 520196168), (64, 325122605), (80, 260098084), (160, 130049042), (320, 65024521)]