20876900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18979}}^1$

素因数の和:19004

約数の個数: 36

約数和(自身を含む): 49423920

約数和(自身を除く): 28547020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18979, 37958, 75916, 94895, 189790, 208769, 379580, 417538, 474475, 835076, 948950, 1043845, 1897900, 2087690, 4175380, 5219225, 10438450, 20876900]

約数ペア:

[(1, 20876900), (2, 10438450), (4, 5219225), (5, 4175380), (10, 2087690), (11, 1897900), (20, 1043845), (22, 948950), (25, 835076), (44, 474475), (50, 417538), (55, 379580), (100, 208769), (110, 189790), (220, 94895), (275, 75916), (550, 37958), (1100, 18979)]