82805540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:836

約数の個数: 48

約数和(自身を含む): 179165952

約数和(自身を除く): 96360412

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 137, 188, 235, 274, 470, 548, 643, 685, 940, 1286, 1370, 2572, 2740, 3215, 6430, 6439, 12860, 12878, 25756, 30221, 32195, 60442, 64390, 88091, 120884, 128780, 151105, 176182, 302210, 352364, 440455, 604420, 880910, 1761820, 4140277, 8280554, 16561108, 20701385, 41402770, 82805540]

約数ペア:

[(1, 82805540), (2, 41402770), (4, 20701385), (5, 16561108), (10, 8280554), (20, 4140277), (47, 1761820), (94, 880910), (137, 604420), (188, 440455), (235, 352364), (274, 302210), (470, 176182), (548, 151105), (643, 128780), (685, 120884), (940, 88091), (1286, 64390), (1370, 60442), (2572, 32195), (2740, 30221), (3215, 25756), (6430, 12878), (6439, 12860)]