18428840

素因数分解:

$2^3\times 5^1\times {\mathrm{460721}}^1$

素因数の和:460732

約数の個数: 16

約数和(自身を含む): 41464980

約数和(自身を除く): 23036140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 460721, 921442, 1842884, 2303605, 3685768, 4607210, 9214420, 18428840]

約数ペア:

[(1, 18428840), (2, 9214420), (4, 4607210), (5, 3685768), (8, 2303605), (10, 1842884), (20, 921442), (40, 460721)]