1989020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9041}}^1$

素因数の和:9061

約数の個数: 24

約数和(自身を含む): 4557168

約数和(自身を除く): 2568148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 9041, 18082, 36164, 45205, 90410, 99451, 180820, 198902, 397804, 497255, 994510, 1989020]

約数ペア:

[(1, 1989020), (2, 994510), (4, 497255), (5, 397804), (10, 198902), (11, 180820), (20, 99451), (22, 90410), (44, 45205), (55, 36164), (110, 18082), (220, 9041)]