90400090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{821819}}^1$

素因数の和:821837

約数の個数: 16

約数和(自身を含む): 177513120

約数和(自身を除く): 87113030

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 821819, 1643638, 4109095, 8218190, 9040009, 18080018, 45200045, 90400090]

約数ペア:

[(1, 90400090), (2, 45200045), (5, 18080018), (10, 9040009), (11, 8218190), (22, 4109095), (55, 1643638), (110, 821819)]