128839724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{34897}}^1$

素因数の和:34985

約数の個数: 24

約数和(自身を含む): 246240288

約数和(自身を除く): 117400564

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 34897, 69794, 139588, 453661, 907322, 1814644, 2477687, 4955374, 9910748, 32209931, 64419862, 128839724]

約数ペア:

[(1, 128839724), (2, 64419862), (4, 32209931), (13, 9910748), (26, 4955374), (52, 2477687), (71, 1814644), (142, 907322), (284, 453661), (923, 139588), (1846, 69794), (3692, 34897)]