81619745

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{4831}}^1$

素因数の和:4976

約数の個数: 16

約数和(自身を含む): 102051840

約数和(自身を除く): 20432095

約数列:

[1, 5, 31, 109, 155, 545, 3379, 4831, 16895, 24155, 149761, 526579, 748805, 2632895, 16323949, 81619745]

約数ペア:

[(1, 81619745), (5, 16323949), (31, 2632895), (109, 748805), (155, 526579), (545, 149761), (3379, 24155), (4831, 16895)]