127903760

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{6221}}^1$

素因数の和:6491

約数の個数: 40

約数和(自身を含む): 298581336

約数和(自身を除く): 170677576

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 6221, 10280, 12442, 20560, 24884, 31105, 49768, 62210, 99536, 124420, 248840, 497680, 1598797, 3197594, 6395188, 7993985, 12790376, 15987970, 25580752, 31975940, 63951880, 127903760]

約数ペア:

[(1, 127903760), (2, 63951880), (4, 31975940), (5, 25580752), (8, 15987970), (10, 12790376), (16, 7993985), (20, 6395188), (40, 3197594), (80, 1598797), (257, 497680), (514, 248840), (1028, 124420), (1285, 99536), (2056, 62210), (2570, 49768), (4112, 31105), (5140, 24884), (6221, 20560), (10280, 12442)]