19745186220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2089}}^1\times {\mathrm{52511}}^1$

素因数の和:54615

約数の個数: 72

約数和(自身を含む): 59923543680

約数和(自身を除く): 40178357460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2089, 4178, 6267, 8356, 10445, 12534, 18801, 20890, 25068, 31335, 37602, 41780, 52511, 62670, 75204, 94005, 105022, 125340, 157533, 188010, 210044, 262555, 315066, 376020, 472599, 525110, 630132, 787665, 945198, 1050220, 1575330, 1890396, 2362995, 3150660, 4725990, 9451980, 109695479, 219390958, 329086437, 438781916, 548477395, 658172874, 987259311, 1096954790, 1316345748, 1645432185, 1974518622, 2193909580, 3290864370, 3949037244, 4936296555, 6581728740, 9872593110, 19745186220]

約数ペア:

[(1, 19745186220), (2, 9872593110), (3, 6581728740), (4, 4936296555), (5, 3949037244), (6, 3290864370), (9, 2193909580), (10, 1974518622), (12, 1645432185), (15, 1316345748), (18, 1096954790), (20, 987259311), (30, 658172874), (36, 548477395), (45, 438781916), (60, 329086437), (90, 219390958), (180, 109695479), (2089, 9451980), (4178, 4725990), (6267, 3150660), (8356, 2362995), (10445, 1890396), (12534, 1575330), (18801, 1050220), (20890, 945198), (25068, 787665), (31335, 630132), (37602, 525110), (41780, 472599), (52511, 376020), (62670, 315066), (75204, 262555), (94005, 210044), (105022, 188010), (125340, 157533)]