199395025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{271}}^1\times {\mathrm{1549}}^1$

素因数の和:1849

約数の個数: 24

約数和(自身を含む): 261392000

約数和(自身を除く): 61996975

約数列:

[1, 5, 19, 25, 95, 271, 475, 1355, 1549, 5149, 6775, 7745, 25745, 29431, 38725, 128725, 147155, 419779, 735775, 2098895, 7975801, 10494475, 39879005, 199395025]

約数ペア:

[(1, 199395025), (5, 39879005), (19, 10494475), (25, 7975801), (95, 2098895), (271, 735775), (475, 419779), (1355, 147155), (1549, 128725), (5149, 38725), (6775, 29431), (7745, 25745)]