20110805

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2557}}^1$

素因数の和:2597

約数の個数: 24

約数和(自身を含む): 28577976

約数和(自身を除く): 8467171

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2557, 7865, 12785, 28127, 33241, 140635, 166205, 309397, 365651, 1546985, 1828255, 4022161, 20110805]

約数ペア:

[(1, 20110805), (5, 4022161), (11, 1828255), (13, 1546985), (55, 365651), (65, 309397), (121, 166205), (143, 140635), (605, 33241), (715, 28127), (1573, 12785), (2557, 7865)]