7887740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{547}}^1$

素因数の和:666

約数の個数: 48

約数和(自身を含む): 19149312

約数和(自身を除く): 11261572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 547, 721, 1030, 1094, 1442, 2060, 2188, 2735, 2884, 3605, 3829, 5470, 7210, 7658, 10940, 14420, 15316, 19145, 38290, 56341, 76580, 112682, 225364, 281705, 394387, 563410, 788774, 1126820, 1577548, 1971935, 3943870, 7887740]

約数ペア:

[(1, 7887740), (2, 3943870), (4, 1971935), (5, 1577548), (7, 1126820), (10, 788774), (14, 563410), (20, 394387), (28, 281705), (35, 225364), (70, 112682), (103, 76580), (140, 56341), (206, 38290), (412, 19145), (515, 15316), (547, 14420), (721, 10940), (1030, 7658), (1094, 7210), (1442, 5470), (2060, 3829), (2188, 3605), (2735, 2884)]