27986220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{859}}^1$

素因数の和:1055

約数の個数: 72

約数和(自身を含む): 85459920

約数和(自身を除く): 57473700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 181, 362, 543, 724, 859, 905, 1086, 1629, 1718, 1810, 2172, 2577, 2715, 3258, 3436, 3620, 4295, 5154, 5430, 6516, 7731, 8145, 8590, 10308, 10860, 12885, 15462, 16290, 17180, 25770, 30924, 32580, 38655, 51540, 77310, 154620, 155479, 310958, 466437, 621916, 777395, 932874, 1399311, 1554790, 1865748, 2332185, 2798622, 3109580, 4664370, 5597244, 6996555, 9328740, 13993110, 27986220]

約数ペア:

[(1, 27986220), (2, 13993110), (3, 9328740), (4, 6996555), (5, 5597244), (6, 4664370), (9, 3109580), (10, 2798622), (12, 2332185), (15, 1865748), (18, 1554790), (20, 1399311), (30, 932874), (36, 777395), (45, 621916), (60, 466437), (90, 310958), (180, 155479), (181, 154620), (362, 77310), (543, 51540), (724, 38655), (859, 32580), (905, 30924), (1086, 25770), (1629, 17180), (1718, 16290), (1810, 15462), (2172, 12885), (2577, 10860), (2715, 10308), (3258, 8590), (3436, 8145), (3620, 7731), (4295, 6516), (5154, 5430)]