128807679

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{727}}^1$

素因数の和:820

約数の個数: 64

約数和(自身を含む): 234823680

約数和(自身を除く): 106016001

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 59, 77, 91, 143, 177, 231, 273, 413, 429, 649, 727, 767, 1001, 1239, 1947, 2181, 2301, 3003, 4543, 5089, 5369, 7997, 8437, 9451, 13629, 15267, 16107, 23991, 25311, 28353, 42893, 55979, 59059, 66157, 103961, 128679, 167937, 177177, 198471, 300251, 311883, 471823, 557609, 727727, 900753, 1415469, 1672827, 2183181, 3302761, 3903263, 6133699, 9908283, 11709789, 18401097, 42935893, 128807679]

約数ペア:

[(1, 128807679), (3, 42935893), (7, 18401097), (11, 11709789), (13, 9908283), (21, 6133699), (33, 3903263), (39, 3302761), (59, 2183181), (77, 1672827), (91, 1415469), (143, 900753), (177, 727727), (231, 557609), (273, 471823), (413, 311883), (429, 300251), (649, 198471), (727, 177177), (767, 167937), (1001, 128679), (1239, 103961), (1947, 66157), (2181, 59059), (2301, 55979), (3003, 42893), (4543, 28353), (5089, 25311), (5369, 23991), (7997, 16107), (8437, 15267), (9451, 13629)]