128551480

素因数分解:

$2^3\times 5^1\times {\mathrm{1447}}^1\times {\mathrm{2221}}^1$

素因数の和:3679

約数の個数: 32

約数和(自身を含む): 289571040

約数和(自身を除く): 161019560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1447, 2221, 2894, 4442, 5788, 7235, 8884, 11105, 11576, 14470, 17768, 22210, 28940, 44420, 57880, 88840, 3213787, 6427574, 12855148, 16068935, 25710296, 32137870, 64275740, 128551480]

約数ペア:

[(1, 128551480), (2, 64275740), (4, 32137870), (5, 25710296), (8, 16068935), (10, 12855148), (20, 6427574), (40, 3213787), (1447, 88840), (2221, 57880), (2894, 44420), (4442, 28940), (5788, 22210), (7235, 17768), (8884, 14470), (11105, 11576)]