78918147

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{433}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 142990848

約数和(自身を除く): 64072701

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 263, 433, 693, 789, 1299, 1841, 2367, 2893, 3031, 3897, 4763, 5523, 8679, 9093, 14289, 16569, 20251, 26037, 27279, 33341, 42867, 60753, 100023, 113879, 182259, 300069, 341637, 797153, 1024911, 1252669, 2391459, 3758007, 7174377, 8768683, 11274021, 26306049, 78918147]

約数ペア:

[(1, 78918147), (3, 26306049), (7, 11274021), (9, 8768683), (11, 7174377), (21, 3758007), (33, 2391459), (63, 1252669), (77, 1024911), (99, 797153), (231, 341637), (263, 300069), (433, 182259), (693, 113879), (789, 100023), (1299, 60753), (1841, 42867), (2367, 33341), (2893, 27279), (3031, 26037), (3897, 20251), (4763, 16569), (5523, 14289), (8679, 9093)]