72978660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{405437}}^1$

素因数の和:405452

約数の個数: 36

約数和(自身を含む): 221369148

約数和(自身を除く): 148390488

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 405437, 810874, 1216311, 1621748, 2027185, 2432622, 3648933, 4054370, 4865244, 6081555, 7297866, 8108740, 12163110, 14595732, 18244665, 24326220, 36489330, 72978660]

約数ペア:

[(1, 72978660), (2, 36489330), (3, 24326220), (4, 18244665), (5, 14595732), (6, 12163110), (9, 8108740), (10, 7297866), (12, 6081555), (15, 4865244), (18, 4054370), (20, 3648933), (30, 2432622), (36, 2027185), (45, 1621748), (60, 1216311), (90, 810874), (180, 405437)]