2640845

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:292

約数の個数: 16

約数和(自身を含む): 3307392

約数和(自身を除く): 666547

約数列:

[1, 5, 43, 71, 173, 215, 355, 865, 3053, 7439, 12283, 15265, 37195, 61415, 528169, 2640845]

約数ペア:

[(1, 2640845), (5, 528169), (43, 61415), (71, 37195), (173, 15265), (215, 12283), (355, 7439), (865, 3053)]