209984670

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{111103}}^1$

素因数の和:111126

約数の個数: 64

約数和(自身を含む): 639959040

約数和(自身を除く): 429974370

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, 111103, 222206, 333309, 555515, 666618, 777721, 999927, 1111030, 1555442, 1666545, 1999854, 2333163, 2999781, 3333090, 3888605, 4666326, 4999635, 5999562, 6999489, 7777210, 9999270, 11665815, 13998978, 14998905, 20998467, 23331630, 29997810, 34997445, 41996934, 69994890, 104992335, 209984670]

約数ペア:

[(1, 209984670), (2, 104992335), (3, 69994890), (5, 41996934), (6, 34997445), (7, 29997810), (9, 23331630), (10, 20998467), (14, 14998905), (15, 13998978), (18, 11665815), (21, 9999270), (27, 7777210), (30, 6999489), (35, 5999562), (42, 4999635), (45, 4666326), (54, 3888605), (63, 3333090), (70, 2999781), (90, 2333163), (105, 1999854), (126, 1666545), (135, 1555442), (189, 1111030), (210, 999927), (270, 777721), (315, 666618), (378, 555515), (630, 333309), (945, 222206), (1890, 111103)]