128734928

素因数分解:

$2^4\times 7^1\times {\mathrm{71}}^1\times {\mathrm{16189}}^1$

素因数の和:16275

約数の個数: 40

約数和(自身を含む): 289088640

約数和(自身を除く): 160353712

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 71, 112, 142, 284, 497, 568, 994, 1136, 1988, 3976, 7952, 16189, 32378, 64756, 113323, 129512, 226646, 259024, 453292, 906584, 1149419, 1813168, 2298838, 4597676, 8045933, 9195352, 16091866, 18390704, 32183732, 64367464, 128734928]

約数ペア:

[(1, 128734928), (2, 64367464), (4, 32183732), (7, 18390704), (8, 16091866), (14, 9195352), (16, 8045933), (28, 4597676), (56, 2298838), (71, 1813168), (112, 1149419), (142, 906584), (284, 453292), (497, 259024), (568, 226646), (994, 129512), (1136, 113323), (1988, 64756), (3976, 32378), (7952, 16189)]