20157182878

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{258631}}^1$

素因数の和:258952

約数の個数: 32

約数和(自身を含む): 36498147840

約数和(自身を除く): 16340964962

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 293, 586, 2051, 4102, 5567, 11134, 38969, 77938, 258631, 517262, 1810417, 3620834, 4913989, 9827978, 34397923, 68795846, 75778883, 151557766, 530452181, 1060904362, 1439798777, 2879597554, 10078591439, 20157182878]

約数ペア:

[(1, 20157182878), (2, 10078591439), (7, 2879597554), (14, 1439798777), (19, 1060904362), (38, 530452181), (133, 151557766), (266, 75778883), (293, 68795846), (586, 34397923), (2051, 9827978), (4102, 4913989), (5567, 3620834), (11134, 1810417), (38969, 517262), (77938, 258631)]