20880045

素因数分解:

$3^3\times 5^1\times {\mathrm{154667}}^1$

素因数の和:154681

約数の個数: 16

約数和(自身を含む): 37120320

約数和(自身を除く): 16240275

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 154667, 464001, 773335, 1392003, 2320005, 4176009, 6960015, 20880045]

約数ペア:

[(1, 20880045), (3, 6960015), (5, 4176009), (9, 2320005), (15, 1392003), (27, 773335), (45, 464001), (135, 154667)]