51205240

素因数分解:

$2^3\times 5^1\times {\mathrm{1280131}}^1$

素因数の和:1280142

約数の個数: 16

約数和(自身を含む): 115211880

約数和(自身を除く): 64006640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1280131, 2560262, 5120524, 6400655, 10241048, 12801310, 25602620, 51205240]

約数ペア:

[(1, 51205240), (2, 25602620), (4, 12801310), (5, 10241048), (8, 6400655), (10, 5120524), (20, 2560262), (40, 1280131)]