20126795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:459

約数の個数: 32

約数和(自身を含む): 28089600

約数和(自身を除く): 7962805

約数列:

[1, 5, 13, 19, 43, 65, 95, 215, 247, 379, 559, 817, 1235, 1895, 2795, 4085, 4927, 7201, 10621, 16297, 24635, 36005, 53105, 81485, 93613, 211861, 309643, 468065, 1059305, 1548215, 4025359, 20126795]

約数ペア:

[(1, 20126795), (5, 4025359), (13, 1548215), (19, 1059305), (43, 468065), (65, 309643), (95, 211861), (215, 93613), (247, 81485), (379, 53105), (559, 36005), (817, 24635), (1235, 16297), (1895, 10621), (2795, 7201), (4085, 4927)]