131929040

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8287}}^1$

素因数の和:8499

約数の個数: 40

約数和(自身を含む): 308313600

約数和(自身を除く): 176384560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 3184, 3980, 7960, 8287, 15920, 16574, 33148, 41435, 66296, 82870, 132592, 165740, 331480, 662960, 1649113, 3298226, 6596452, 8245565, 13192904, 16491130, 26385808, 32982260, 65964520, 131929040]

約数ペア:

[(1, 131929040), (2, 65964520), (4, 32982260), (5, 26385808), (8, 16491130), (10, 13192904), (16, 8245565), (20, 6596452), (40, 3298226), (80, 1649113), (199, 662960), (398, 331480), (796, 165740), (995, 132592), (1592, 82870), (1990, 66296), (3184, 41435), (3980, 33148), (7960, 16574), (8287, 15920)]