20257945

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1597}}^1$

素因数の和:1704

約数の個数: 16

約数和(自身を含む): 25312320

約数和(自身を除く): 5054375

約数列:

[1, 5, 43, 59, 215, 295, 1597, 2537, 7985, 12685, 68671, 94223, 343355, 471115, 4051589, 20257945]

約数ペア:

[(1, 20257945), (5, 4051589), (43, 471115), (59, 343355), (215, 94223), (295, 68671), (1597, 12685), (2537, 7985)]