81209912

素因数分解:

$2^3\times 7^1\times {\mathrm{1450177}}^1$

素因数の和:1450190

約数の個数: 16

約数和(自身を含む): 174021360

約数和(自身を除く): 92811448

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1450177, 2900354, 5800708, 10151239, 11601416, 20302478, 40604956, 81209912]

約数ペア:

[(1, 81209912), (2, 40604956), (4, 20302478), (7, 11601416), (8, 10151239), (14, 5800708), (28, 2900354), (56, 1450177)]