20880315

素因数分解:

$3^3\times 5^1\times {\mathrm{154669}}^1$

素因数の和:154683

約数の個数: 16

約数和(自身を含む): 37120800

約数和(自身を除く): 16240485

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 154669, 464007, 773345, 1392021, 2320035, 4176063, 6960105, 20880315]

約数ペア:

[(1, 20880315), (3, 6960105), (5, 4176063), (9, 2320035), (15, 1392021), (27, 773345), (45, 464007), (135, 154669)]