1638180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 5241600

約数和(自身を除く): 3603420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 479, 570, 684, 855, 958, 1140, 1437, 1710, 1916, 2395, 2874, 3420, 4311, 4790, 5748, 7185, 8622, 9101, 9580, 14370, 17244, 18202, 21555, 27303, 28740, 36404, 43110, 45505, 54606, 81909, 86220, 91010, 109212, 136515, 163818, 182020, 273030, 327636, 409545, 546060, 819090, 1638180]

約数ペア:

[(1, 1638180), (2, 819090), (3, 546060), (4, 409545), (5, 327636), (6, 273030), (9, 182020), (10, 163818), (12, 136515), (15, 109212), (18, 91010), (19, 86220), (20, 81909), (30, 54606), (36, 45505), (38, 43110), (45, 36404), (57, 28740), (60, 27303), (76, 21555), (90, 18202), (95, 17244), (114, 14370), (171, 9580), (180, 9101), (190, 8622), (228, 7185), (285, 5748), (342, 4790), (380, 4311), (479, 3420), (570, 2874), (684, 2395), (855, 1916), (958, 1710), (1140, 1437)]