208317690

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{110221}}^1$

素因数の和:110244

約数の個数: 64

約数和(自身を含む): 634878720

約数和(自身を除く): 426561030

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 110221, 220442, 330663, 551105, 661326, 771547, 991989, 1102210, 1543094, 1653315, 1983978, 2314641, 2975967, 3306630, 3857735, 4629282, 4959945, 5951934, 6943923, 7715470, 9919890, 11573205, 13887846, 14879835, 20831769, 23146410, 29759670, 34719615, 41663538, 69439230, 104158845, 208317690]

約数ペア:

[(1, 208317690), (2, 104158845), (3, 69439230), (5, 41663538), (6, 34719615), (7, 29759670), (9, 23146410), (10, 20831769), (14, 14879835), (15, 13887846), (18, 11573205), (21, 9919890), (27, 7715470), (30, 6943923), (35, 5951934), (42, 4959945), (45, 4629282), (54, 3857735), (63, 3306630), (70, 2975967), (90, 2314641), (105, 1983978), (126, 1653315), (135, 1543094), (189, 1102210), (210, 991989), (270, 771547), (315, 661326), (378, 551105), (630, 330663), (945, 220442), (1890, 110221)]