19939702945

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1\times {\mathrm{78307}}^1$

素因数の和:78840

約数の個数: 16

約数和(自身を含む): 24176498688

約数和(自身を除く): 4236795743

約数列:

[1, 5, 127, 401, 635, 2005, 50927, 78307, 254635, 391535, 9944989, 31401107, 49724945, 157005535, 3987940589, 19939702945]

約数ペア:

[(1, 19939702945), (5, 3987940589), (127, 157005535), (401, 49724945), (635, 31401107), (2005, 9944989), (50927, 391535), (78307, 254635)]