12720265

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{2087}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 16236288

約数和(自身を除く): 3516023

約数列:

[1, 5, 23, 53, 115, 265, 1219, 2087, 6095, 10435, 48001, 110611, 240005, 553055, 2544053, 12720265]

約数ペア:

[(1, 12720265), (5, 2544053), (23, 553055), (53, 240005), (115, 110611), (265, 48001), (1219, 10435), (2087, 6095)]