81199270

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{198047}}^1$

素因数の和:198095

約数の個数: 16

約数和(自身を含む): 149724288

約数和(自身を除く): 68525018

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 198047, 396094, 990235, 1980470, 8119927, 16239854, 40599635, 81199270]

約数ペア:

[(1, 81199270), (2, 40599635), (5, 16239854), (10, 8119927), (41, 1980470), (82, 990235), (205, 396094), (410, 198047)]