40000840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90911}}^1$

素因数の和:90933

約数の個数: 32

約数和(自身を含む): 98184960

約数和(自身を除く): 58184120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 90911, 181822, 363644, 454555, 727288, 909110, 1000021, 1818220, 2000042, 3636440, 4000084, 5000105, 8000168, 10000210, 20000420, 40000840]

約数ペア:

[(1, 40000840), (2, 20000420), (4, 10000210), (5, 8000168), (8, 5000105), (10, 4000084), (11, 3636440), (20, 2000042), (22, 1818220), (40, 1000021), (44, 909110), (55, 727288), (88, 454555), (110, 363644), (220, 181822), (440, 90911)]