20284075

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3739}}^1$

素因数の和:3787

約数の個数: 24

約数和(自身を含む): 29680640

約数和(自身を除く): 9396565

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 775, 1085, 3739, 5425, 18695, 26173, 93475, 115909, 130865, 579545, 654325, 811363, 2897725, 4056815, 20284075]

約数ペア:

[(1, 20284075), (5, 4056815), (7, 2897725), (25, 811363), (31, 654325), (35, 579545), (155, 130865), (175, 115909), (217, 93475), (775, 26173), (1085, 18695), (3739, 5425)]