128782612

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:988

約数の個数: 48

約数和(自身を含む): 270047232

約数和(自身を除く): 141264620

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 311, 322, 622, 643, 644, 1244, 1286, 2177, 2572, 4354, 4501, 7153, 8708, 9002, 14306, 14789, 18004, 28612, 29578, 50071, 59156, 100142, 103523, 199973, 200284, 207046, 399946, 414092, 799892, 1399811, 2799622, 4599379, 5599244, 9198758, 18397516, 32195653, 64391306, 128782612]

約数ペア:

[(1, 128782612), (2, 64391306), (4, 32195653), (7, 18397516), (14, 9198758), (23, 5599244), (28, 4599379), (46, 2799622), (92, 1399811), (161, 799892), (311, 414092), (322, 399946), (622, 207046), (643, 200284), (644, 199973), (1244, 103523), (1286, 100142), (2177, 59156), (2572, 50071), (4354, 29578), (4501, 28612), (7153, 18004), (8708, 14789), (9002, 14306)]