20807540120

素因数分解:

$2^3\times 5^1\times {\mathrm{520188503}}^1$

素因数の和:520188514

約数の個数: 16

約数和(自身を含む): 46816965360

約数和(自身を除く): 26009425240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 520188503, 1040377006, 2080754012, 2600942515, 4161508024, 5201885030, 10403770060, 20807540120]

約数ペア:

[(1, 20807540120), (2, 10403770060), (4, 5201885030), (5, 4161508024), (8, 2600942515), (10, 2080754012), (20, 1040377006), (40, 520188503)]