1991545

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 16

約数和(自身を含む): 2502720

約数和(自身を除く): 511175

約数列:

[1, 5, 43, 59, 157, 215, 295, 785, 2537, 6751, 9263, 12685, 33755, 46315, 398309, 1991545]

約数ペア:

[(1, 1991545), (5, 398309), (43, 46315), (59, 33755), (157, 12685), (215, 9263), (295, 6751), (785, 2537)]