18200120

素因数分解:

$2^3\times 5^1\times {\mathrm{455003}}^1$

素因数の和:455014

約数の個数: 16

約数和(自身を含む): 40950360

約数和(自身を除く): 22750240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 455003, 910006, 1820012, 2275015, 3640024, 4550030, 9100060, 18200120]

約数ペア:

[(1, 18200120), (2, 9100060), (4, 4550030), (5, 3640024), (8, 2275015), (10, 1820012), (20, 910006), (40, 455003)]