81503495

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{1249}}^1$

素因数の和:1706

約数の個数: 16

約数和(自身を含む): 101280000

約数和(自身を除く): 19776505

約数列:

[1, 5, 31, 155, 421, 1249, 2105, 6245, 13051, 38719, 65255, 193595, 525829, 2629145, 16300699, 81503495]

約数ペア:

[(1, 81503495), (5, 16300699), (31, 2629145), (155, 525829), (421, 193595), (1249, 65255), (2105, 38719), (6245, 13051)]