18870180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{251}}^1$

素因数の和:449

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 42093660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 179, 210, 251, 358, 420, 502, 537, 716, 753, 895, 1004, 1074, 1253, 1255, 1506, 1757, 1790, 2148, 2506, 2510, 2685, 3012, 3514, 3580, 3759, 3765, 5012, 5020, 5271, 5370, 6265, 7028, 7518, 7530, 8785, 10542, 10740, 12530, 15036, 15060, 17570, 18795, 21084, 25060, 26355, 35140, 37590, 44929, 52710, 75180, 89858, 105420, 134787, 179716, 224645, 269574, 314503, 449290, 539148, 629006, 673935, 898580, 943509, 1258012, 1347870, 1572515, 1887018, 2695740, 3145030, 3774036, 4717545, 6290060, 9435090, 18870180]

約数ペア:

[(1, 18870180), (2, 9435090), (3, 6290060), (4, 4717545), (5, 3774036), (6, 3145030), (7, 2695740), (10, 1887018), (12, 1572515), (14, 1347870), (15, 1258012), (20, 943509), (21, 898580), (28, 673935), (30, 629006), (35, 539148), (42, 449290), (60, 314503), (70, 269574), (84, 224645), (105, 179716), (140, 134787), (179, 105420), (210, 89858), (251, 75180), (358, 52710), (420, 44929), (502, 37590), (537, 35140), (716, 26355), (753, 25060), (895, 21084), (1004, 18795), (1074, 17570), (1253, 15060), (1255, 15036), (1506, 12530), (1757, 10740), (1790, 10542), (2148, 8785), (2506, 7530), (2510, 7518), (2685, 7028), (3012, 6265), (3514, 5370), (3580, 5271), (3759, 5020), (3765, 5012)]