20199655

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1997}}^1$

素因数の和:2043

約数の個数: 24

約数和(自身を含む): 29442528

約数和(自身を除く): 9242873

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 1997, 2023, 9985, 10115, 13979, 33949, 69895, 169745, 237643, 577133, 1188215, 2885665, 4039931, 20199655]

約数ペア:

[(1, 20199655), (5, 4039931), (7, 2885665), (17, 1188215), (35, 577133), (85, 237643), (119, 169745), (289, 69895), (595, 33949), (1445, 13979), (1997, 10115), (2023, 9985)]