12728215

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1117}}^1$

素因数の和:1218

約数の個数: 16

約数和(自身を含む): 15938208

約数和(自身を除く): 3209993

約数列:

[1, 5, 43, 53, 215, 265, 1117, 2279, 5585, 11395, 48031, 59201, 240155, 296005, 2545643, 12728215]

約数ペア:

[(1, 12728215), (5, 2545643), (43, 296005), (53, 240155), (215, 59201), (265, 48031), (1117, 11395), (2279, 5585)]