19982015

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{7253}}^1$

素因数の和:7306

約数の個数: 16

約数和(自身を含む): 26114400

約数和(自身を除く): 6132385

約数列:

[1, 5, 19, 29, 95, 145, 551, 2755, 7253, 36265, 137807, 210337, 689035, 1051685, 3996403, 19982015]

約数ペア:

[(1, 19982015), (5, 3996403), (19, 1051685), (29, 689035), (95, 210337), (145, 137807), (551, 36265), (2755, 7253)]