129338416

素因数分解:

$2^4\times {\mathrm{641}}^1\times {\mathrm{12611}}^1$

素因数の和:13260

約数の個数: 20

約数和(自身を含む): 251004024

約数和(自身を除く): 121665608

約数列:

[1, 2, 4, 8, 16, 641, 1282, 2564, 5128, 10256, 12611, 25222, 50444, 100888, 201776, 8083651, 16167302, 32334604, 64669208, 129338416]

約数ペア:

[(1, 129338416), (2, 64669208), (4, 32334604), (8, 16167302), (16, 8083651), (641, 201776), (1282, 100888), (2564, 50444), (5128, 25222), (10256, 12611)]