199602191875

素因数分解:

$5^4\times {\mathrm{641}}^1\times {\mathrm{498227}}^1$

素因数の和:498888

約数の個数: 20

約数和(自身を含む): 249812515656

約数和(自身を除く): 50210323781

約数列:

[1, 5, 25, 125, 625, 641, 3205, 16025, 80125, 400625, 498227, 2491135, 12455675, 62278375, 311391875, 319363507, 1596817535, 7984087675, 39920438375, 199602191875]

約数ペア:

[(1, 199602191875), (5, 39920438375), (25, 7984087675), (125, 1596817535), (625, 319363507), (641, 311391875), (3205, 62278375), (16025, 12455675), (80125, 2491135), (400625, 498227)]