13615520

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1979}}^1$

素因数の和:2037

約数の個数: 48

約数和(自身を含む): 32931360

約数和(自身を除く): 19315840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 1979, 3440, 3958, 6880, 7916, 9895, 15832, 19790, 31664, 39580, 63328, 79160, 85097, 158320, 170194, 316640, 340388, 425485, 680776, 850970, 1361552, 1701940, 2723104, 3403880, 6807760, 13615520]

約数ペア:

[(1, 13615520), (2, 6807760), (4, 3403880), (5, 2723104), (8, 1701940), (10, 1361552), (16, 850970), (20, 680776), (32, 425485), (40, 340388), (43, 316640), (80, 170194), (86, 158320), (160, 85097), (172, 79160), (215, 63328), (344, 39580), (430, 31664), (688, 19790), (860, 15832), (1376, 9895), (1720, 7916), (1979, 6880), (3440, 3958)]