18181880

素因数分解:

$2^3\times 5^1\times {\mathrm{454547}}^1$

素因数の和:454558

約数の個数: 16

約数和(自身を含む): 40909320

約数和(自身を除く): 22727440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 454547, 909094, 1818188, 2272735, 3636376, 4545470, 9090940, 18181880]

約数ペア:

[(1, 18181880), (2, 9090940), (4, 4545470), (5, 3636376), (8, 2272735), (10, 1818188), (20, 909094), (40, 454547)]