20888928025

素因数分解:

$5^2\times 7^1\times {\mathrm{449}}^1\times {\mathrm{265847}}^1$

素因数の和:266313

約数の個数: 24

約数和(自身を含む): 29668636800

約数和(自身を除く): 8779708775

約数列:

[1, 5, 7, 25, 35, 175, 449, 2245, 3143, 11225, 15715, 78575, 265847, 1329235, 1860929, 6646175, 9304645, 46523225, 119365303, 596826515, 835557121, 2984132575, 4177785605, 20888928025]

約数ペア:

[(1, 20888928025), (5, 4177785605), (7, 2984132575), (25, 835557121), (35, 596826515), (175, 119365303), (449, 46523225), (2245, 9304645), (3143, 6646175), (11225, 1860929), (15715, 1329235), (78575, 265847)]