289490005

素因数分解:

$5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{23431}}^1$

素因数の和:23796

約数の個数: 16

約数和(自身を含む): 398156544

約数和(自身を除く): 108666539

約数列:

[1, 5, 7, 35, 353, 1765, 2471, 12355, 23431, 117155, 164017, 820085, 8271143, 41355715, 57898001, 289490005]

約数ペア:

[(1, 289490005), (5, 57898001), (7, 41355715), (35, 8271143), (353, 820085), (1765, 164017), (2471, 117155), (12355, 23431)]