51385240

素因数分解:

$2^3\times 5^1\times {\mathrm{1284631}}^1$

素因数の和:1284642

約数の個数: 16

約数和(自身を含む): 115616880

約数和(自身を除く): 64231640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1284631, 2569262, 5138524, 6423155, 10277048, 12846310, 25692620, 51385240]

約数ペア:

[(1, 51385240), (2, 25692620), (4, 12846310), (5, 10277048), (8, 6423155), (10, 5138524), (20, 2569262), (40, 1284631)]