20320895

素因数分解:

$5^1\times 7^1\times {\mathrm{617}}^1\times {\mathrm{941}}^1$

素因数の和:1570

約数の個数: 16

約数和(自身を含む): 27943488

約数和(自身を除く): 7622593

約数列:

[1, 5, 7, 35, 617, 941, 3085, 4319, 4705, 6587, 21595, 32935, 580597, 2902985, 4064179, 20320895]

約数ペア:

[(1, 20320895), (5, 4064179), (7, 2902985), (35, 580597), (617, 32935), (941, 21595), (3085, 6587), (4319, 4705)]