247499420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{4027}}^1$

素因数の和:4482

約数の個数: 48

約数和(自身を含む): 595499520

約数和(自身を除く): 348000100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 439, 878, 1756, 2195, 3073, 4027, 4390, 6146, 8054, 8780, 12292, 15365, 16108, 20135, 28189, 30730, 40270, 56378, 61460, 80540, 112756, 140945, 281890, 563780, 1767853, 3535706, 7071412, 8839265, 12374971, 17678530, 24749942, 35357060, 49499884, 61874855, 123749710, 247499420]

約数ペア:

[(1, 247499420), (2, 123749710), (4, 61874855), (5, 49499884), (7, 35357060), (10, 24749942), (14, 17678530), (20, 12374971), (28, 8839265), (35, 7071412), (70, 3535706), (140, 1767853), (439, 563780), (878, 281890), (1756, 140945), (2195, 112756), (3073, 80540), (4027, 61460), (4390, 56378), (6146, 40270), (8054, 30730), (8780, 28189), (12292, 20135), (15365, 16108)]