20127680405

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19830227}}^1$

素因数の和:19830268

約数の個数: 16

約数和(自身を含む): 28555528320

約数和(自身を除く): 8427847915

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19830227, 99151135, 138811589, 575076583, 694057945, 2875382915, 4025536081, 20127680405]

約数ペア:

[(1, 20127680405), (5, 4025536081), (7, 2875382915), (29, 694057945), (35, 575076583), (145, 138811589), (203, 99151135), (1015, 19830227)]