20171378975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{9439}}^1$

素因数の和:9888

約数の個数: 48

約数和(自身を含む): 28795776000

約数和(自身を除く): 8624397025

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 409, 475, 1045, 2045, 4499, 5225, 7771, 9439, 10225, 22495, 38855, 47195, 85481, 103829, 112475, 179341, 194275, 235975, 427405, 519145, 896705, 1972751, 2137025, 2595725, 3860551, 4483525, 9863755, 19302755, 42466061, 49318775, 73350469, 96513775, 212330305, 366752345, 806855159, 1061651525, 1833761725, 4034275795, 20171378975]

約数ペア:

[(1, 20171378975), (5, 4034275795), (11, 1833761725), (19, 1061651525), (25, 806855159), (55, 366752345), (95, 212330305), (209, 96513775), (275, 73350469), (409, 49318775), (475, 42466061), (1045, 19302755), (2045, 9863755), (4499, 4483525), (5225, 3860551), (7771, 2595725), (9439, 2137025), (10225, 1972751), (22495, 896705), (38855, 519145), (47195, 427405), (85481, 235975), (103829, 194275), (112475, 179341)]