51389260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197651}}^1$

素因数の和:197673

約数の個数: 24

約数和(自身を含む): 116219376

約数和(自身を除く): 64830116

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197651, 395302, 790604, 988255, 1976510, 2569463, 3953020, 5138926, 10277852, 12847315, 25694630, 51389260]

約数ペア:

[(1, 51389260), (2, 25694630), (4, 12847315), (5, 10277852), (10, 5138926), (13, 3953020), (20, 2569463), (26, 1976510), (52, 988255), (65, 790604), (130, 395302), (260, 197651)]