20578655

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{619}}^1$

素因数の和:794

約数の個数: 16

約数和(自身を含む): 25370400

約数和(自身を除く): 4791745

約数列:

[1, 5, 61, 109, 305, 545, 619, 3095, 6649, 33245, 37759, 67471, 188795, 337355, 4115731, 20578655]

約数ペア:

[(1, 20578655), (5, 4115731), (61, 337355), (109, 188795), (305, 67471), (545, 37759), (619, 33245), (3095, 6649)]