2080493505

素因数分解:

$3^4\times 5^1\times {\mathrm{5137021}}^1$

素因数の和:5137038

約数の個数: 20

約数和(自身を含む): 3729477972

約数和(自身を除く): 1648984467

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 5137021, 15411063, 25685105, 46233189, 77055315, 138699567, 231165945, 416098701, 693497835, 2080493505]

約数ペア:

[(1, 2080493505), (3, 693497835), (5, 416098701), (9, 231165945), (15, 138699567), (27, 77055315), (45, 46233189), (81, 25685105), (135, 15411063), (405, 5137021)]