20051020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91141}}^1$

素因数の和:91161

約数の個数: 24

約数和(自身を含む): 45935568

約数和(自身を除く): 25884548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 91141, 182282, 364564, 455705, 911410, 1002551, 1822820, 2005102, 4010204, 5012755, 10025510, 20051020]

約数ペア:

[(1, 20051020), (2, 10025510), (4, 5012755), (5, 4010204), (10, 2005102), (11, 1822820), (20, 1002551), (22, 911410), (44, 455705), (55, 364564), (110, 182282), (220, 91141)]