18201880

素因数分解:

$2^3\times 5^1\times {\mathrm{455047}}^1$

素因数の和:455058

約数の個数: 16

約数和(自身を含む): 40954320

約数和(自身を除く): 22752440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 455047, 910094, 1820188, 2275235, 3640376, 4550470, 9100940, 18201880]

約数ペア:

[(1, 18201880), (2, 9100940), (4, 4550470), (5, 3640376), (8, 2275235), (10, 1820188), (20, 910094), (40, 455047)]