84155720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{991}}^1$

素因数の和:1206

約数の個数: 64

約数和(自身を含む): 207843840

約数和(自身を除く): 123688120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 193, 220, 386, 440, 772, 965, 991, 1544, 1930, 1982, 2123, 3860, 3964, 4246, 4955, 7720, 7928, 8492, 9910, 10615, 10901, 16984, 19820, 21230, 21802, 39640, 42460, 43604, 54505, 84920, 87208, 109010, 191263, 218020, 382526, 436040, 765052, 956315, 1530104, 1912630, 2103893, 3825260, 4207786, 7650520, 8415572, 10519465, 16831144, 21038930, 42077860, 84155720]

約数ペア:

[(1, 84155720), (2, 42077860), (4, 21038930), (5, 16831144), (8, 10519465), (10, 8415572), (11, 7650520), (20, 4207786), (22, 3825260), (40, 2103893), (44, 1912630), (55, 1530104), (88, 956315), (110, 765052), (193, 436040), (220, 382526), (386, 218020), (440, 191263), (772, 109010), (965, 87208), (991, 84920), (1544, 54505), (1930, 43604), (1982, 42460), (2123, 39640), (3860, 21802), (3964, 21230), (4246, 19820), (4955, 16984), (7720, 10901), (7928, 10615), (8492, 9910)]