9890005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{379}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 12640320

約数和(自身を除く): 2750315

約数列:

[1, 5, 17, 85, 307, 379, 1535, 1895, 5219, 6443, 26095, 32215, 116353, 581765, 1978001, 9890005]

約数ペア:

[(1, 9890005), (5, 1978001), (17, 581765), (85, 116353), (307, 32215), (379, 26095), (1535, 6443), (1895, 5219)]