128913008

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{18869}}^1$

素因数の和:18945

約数の個数: 40

約数和(自身を含む): 290145120

約数和(自身を除く): 161232112

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 112, 122, 244, 427, 488, 854, 976, 1708, 3416, 6832, 18869, 37738, 75476, 132083, 150952, 264166, 301904, 528332, 1056664, 1151009, 2113328, 2302018, 4604036, 8057063, 9208072, 16114126, 18416144, 32228252, 64456504, 128913008]

約数ペア:

[(1, 128913008), (2, 64456504), (4, 32228252), (7, 18416144), (8, 16114126), (14, 9208072), (16, 8057063), (28, 4604036), (56, 2302018), (61, 2113328), (112, 1151009), (122, 1056664), (244, 528332), (427, 301904), (488, 264166), (854, 150952), (976, 132083), (1708, 75476), (3416, 37738), (6832, 18869)]