18813420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5501}}^1$

素因数の和:5535

約数の個数: 72

約数和(自身を含む): 60081840

約数和(自身を除く): 41268420

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, 570, 684, 855, 1140, 1710, 3420, 5501, 11002, 16503, 22004, 27505, 33006, 49509, 55010, 66012, 82515, 99018, 104519, 110020, 165030, 198036, 209038, 247545, 313557, 330060, 418076, 495090, 522595, 627114, 940671, 990180, 1045190, 1254228, 1567785, 1881342, 2090380, 3135570, 3762684, 4703355, 6271140, 9406710, 18813420]

約数ペア:

[(1, 18813420), (2, 9406710), (3, 6271140), (4, 4703355), (5, 3762684), (6, 3135570), (9, 2090380), (10, 1881342), (12, 1567785), (15, 1254228), (18, 1045190), (19, 990180), (20, 940671), (30, 627114), (36, 522595), (38, 495090), (45, 418076), (57, 330060), (60, 313557), (76, 247545), (90, 209038), (95, 198036), (114, 165030), (171, 110020), (180, 104519), (190, 99018), (228, 82515), (285, 66012), (342, 55010), (380, 49509), (570, 33006), (684, 27505), (855, 22004), (1140, 16503), (1710, 11002), (3420, 5501)]