20392640

素因数分解:

$2^6\times 5^1\times {\mathrm{63727}}^1$

素因数の和:63744

約数の個数: 28

約数和(自身を含む): 48560736

約数和(自身を除く): 28168096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63727, 127454, 254908, 318635, 509816, 637270, 1019632, 1274540, 2039264, 2549080, 4078528, 5098160, 10196320, 20392640]

約数ペア:

[(1, 20392640), (2, 10196320), (4, 5098160), (5, 4078528), (8, 2549080), (10, 2039264), (16, 1274540), (20, 1019632), (32, 637270), (40, 509816), (64, 318635), (80, 254908), (160, 127454), (320, 63727)]