20407664

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{19037}}^1$

素因数の和:19112

約数の個数: 20

約数和(自身を含む): 40132104

約数和(自身を除く): 19724440

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 1072, 19037, 38074, 76148, 152296, 304592, 1275479, 2550958, 5101916, 10203832, 20407664]

約数ペア:

[(1, 20407664), (2, 10203832), (4, 5101916), (8, 2550958), (16, 1275479), (67, 304592), (134, 152296), (268, 76148), (536, 38074), (1072, 19037)]