18528660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1303}}^1$

素因数の和:1397

約数の個数: 72

約数和(自身を含む): 56958720

約数和(自身を除く): 38430060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1303, 1422, 1580, 2370, 2606, 2844, 3555, 3909, 4740, 5212, 6515, 7110, 7818, 11727, 13030, 14220, 15636, 19545, 23454, 26060, 39090, 46908, 58635, 78180, 102937, 117270, 205874, 234540, 308811, 411748, 514685, 617622, 926433, 1029370, 1235244, 1544055, 1852866, 2058740, 3088110, 3705732, 4632165, 6176220, 9264330, 18528660]

約数ペア:

[(1, 18528660), (2, 9264330), (3, 6176220), (4, 4632165), (5, 3705732), (6, 3088110), (9, 2058740), (10, 1852866), (12, 1544055), (15, 1235244), (18, 1029370), (20, 926433), (30, 617622), (36, 514685), (45, 411748), (60, 308811), (79, 234540), (90, 205874), (158, 117270), (180, 102937), (237, 78180), (316, 58635), (395, 46908), (474, 39090), (711, 26060), (790, 23454), (948, 19545), (1185, 15636), (1303, 14220), (1422, 13030), (1580, 11727), (2370, 7818), (2606, 7110), (2844, 6515), (3555, 5212), (3909, 4740)]