20121325

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3709}}^1$

素因数の和:3757

約数の個数: 24

約数和(自身を含む): 29442560

約数和(自身を除く): 9321235

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 3709, 5425, 18545, 25963, 92725, 114979, 129815, 574895, 649075, 804853, 2874475, 4024265, 20121325]

約数ペア:

[(1, 20121325), (5, 4024265), (7, 2874475), (25, 804853), (31, 649075), (35, 574895), (155, 129815), (175, 114979), (217, 92725), (775, 25963), (1085, 18545), (3709, 5425)]