18628840

素因数分解:

$2^3\times 5^1\times {\mathrm{465721}}^1$

素因数の和:465732

約数の個数: 16

約数和(自身を含む): 41914980

約数和(自身を除く): 23286140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 465721, 931442, 1862884, 2328605, 3725768, 4657210, 9314420, 18628840]

約数ペア:

[(1, 18628840), (2, 9314420), (4, 4657210), (5, 3725768), (8, 2328605), (10, 1862884), (20, 931442), (40, 465721)]