19805462685

素因数分解:

$3^4\times 5^1\times {\mathrm{48902377}}^1$

素因数の和:48902394

約数の個数: 20

約数和(自身を含む): 35503126428

約数和(自身を除く): 15697663743

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 48902377, 146707131, 244511885, 440121393, 733535655, 1320364179, 2200606965, 3961092537, 6601820895, 19805462685]

約数ペア:

[(1, 19805462685), (3, 6601820895), (5, 3961092537), (9, 2200606965), (15, 1320364179), (27, 733535655), (45, 440121393), (81, 244511885), (135, 146707131), (405, 48902377)]