65508289340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251954959}}^1$

素因数の和:251954981

約数の個数: 24

約数和(自身を含む): 148149516480

約数和(自身を除く): 82641227140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 251954959, 503909918, 1007819836, 1259774795, 2519549590, 3275414467, 5039099180, 6550828934, 13101657868, 16377072335, 32754144670, 65508289340]

約数ペア:

[(1, 65508289340), (2, 32754144670), (4, 16377072335), (5, 13101657868), (10, 6550828934), (13, 5039099180), (20, 3275414467), (26, 2519549590), (52, 1259774795), (65, 1007819836), (130, 503909918), (260, 251954959)]