18088020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{317}}^2$

素因数の和:649

約数の個数: 54

約数和(自身を含む): 55040622

約数和(自身を除く): 36952602

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 317, 634, 951, 1268, 1585, 1902, 2853, 3170, 3804, 4755, 5706, 6340, 9510, 11412, 14265, 19020, 28530, 57060, 100489, 200978, 301467, 401956, 502445, 602934, 904401, 1004890, 1205868, 1507335, 1808802, 2009780, 3014670, 3617604, 4522005, 6029340, 9044010, 18088020]

約数ペア:

[(1, 18088020), (2, 9044010), (3, 6029340), (4, 4522005), (5, 3617604), (6, 3014670), (9, 2009780), (10, 1808802), (12, 1507335), (15, 1205868), (18, 1004890), (20, 904401), (30, 602934), (36, 502445), (45, 401956), (60, 301467), (90, 200978), (180, 100489), (317, 57060), (634, 28530), (951, 19020), (1268, 14265), (1585, 11412), (1902, 9510), (2853, 6340), (3170, 5706), (3804, 4755)]