12820085

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2719}}^1$

素因数の和:2788

約数の個数: 16

約数和(自身を含む): 16450560

約数和(自身を除く): 3630475

約数列:

[1, 5, 23, 41, 115, 205, 943, 2719, 4715, 13595, 62537, 111479, 312685, 557395, 2564017, 12820085]

約数ペア:

[(1, 12820085), (5, 2564017), (23, 557395), (41, 312685), (115, 111479), (205, 62537), (943, 13595), (2719, 4715)]