18091800

素因数分解:

$2^3\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:87

約数の個数: 216

約数和(自身を含む): 66857700

約数和(自身を除く): 48765900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 25, 30, 36, 38, 40, 45, 46, 50, 57, 60, 69, 72, 75, 76, 90, 92, 95, 100, 114, 115, 120, 138, 150, 152, 171, 180, 184, 190, 200, 207, 225, 228, 230, 276, 285, 300, 342, 345, 360, 380, 414, 437, 450, 456, 460, 475, 529, 552, 570, 575, 600, 684, 690, 760, 828, 855, 874, 900, 920, 950, 1035, 1058, 1140, 1150, 1311, 1368, 1380, 1425, 1587, 1656, 1710, 1725, 1748, 1800, 1900, 2070, 2116, 2185, 2280, 2300, 2622, 2645, 2760, 2850, 3174, 3420, 3450, 3496, 3800, 3933, 4140, 4232, 4275, 4370, 4600, 4761, 5175, 5244, 5290, 5700, 6348, 6555, 6840, 6900, 7866, 7935, 8280, 8550, 8740, 9522, 10051, 10350, 10488, 10580, 10925, 11400, 12696, 13110, 13225, 13800, 15732, 15870, 17100, 17480, 19044, 19665, 20102, 20700, 21160, 21850, 23805, 26220, 26450, 30153, 31464, 31740, 32775, 34200, 38088, 39330, 39675, 40204, 41400, 43700, 47610, 50255, 52440, 52900, 60306, 63480, 65550, 78660, 79350, 80408, 87400, 90459, 95220, 98325, 100510, 105800, 119025, 120612, 131100, 150765, 157320, 158700, 180918, 190440, 196650, 201020, 238050, 241224, 251275, 262200, 301530, 317400, 361836, 393300, 402040, 452295, 476100, 502550, 603060, 723672, 753825, 786600, 904590, 952200, 1005100, 1206120, 1507650, 1809180, 2010200, 2261475, 3015300, 3618360, 4522950, 6030600, 9045900, 18091800]

約数ペア:

[(1, 18091800), (2, 9045900), (3, 6030600), (4, 4522950), (5, 3618360), (6, 3015300), (8, 2261475), (9, 2010200), (10, 1809180), (12, 1507650), (15, 1206120), (18, 1005100), (19, 952200), (20, 904590), (23, 786600), (24, 753825), (25, 723672), (30, 603060), (36, 502550), (38, 476100), (40, 452295), (45, 402040), (46, 393300), (50, 361836), (57, 317400), (60, 301530), (69, 262200), (72, 251275), (75, 241224), (76, 238050), (90, 201020), (92, 196650), (95, 190440), (100, 180918), (114, 158700), (115, 157320), (120, 150765), (138, 131100), (150, 120612), (152, 119025), (171, 105800), (180, 100510), (184, 98325), (190, 95220), (200, 90459), (207, 87400), (225, 80408), (228, 79350), (230, 78660), (276, 65550), (285, 63480), (300, 60306), (342, 52900), (345, 52440), (360, 50255), (380, 47610), (414, 43700), (437, 41400), (450, 40204), (456, 39675), (460, 39330), (475, 38088), (529, 34200), (552, 32775), (570, 31740), (575, 31464), (600, 30153), (684, 26450), (690, 26220), (760, 23805), (828, 21850), (855, 21160), (874, 20700), (900, 20102), (920, 19665), (950, 19044), (1035, 17480), (1058, 17100), (1140, 15870), (1150, 15732), (1311, 13800), (1368, 13225), (1380, 13110), (1425, 12696), (1587, 11400), (1656, 10925), (1710, 10580), (1725, 10488), (1748, 10350), (1800, 10051), (1900, 9522), (2070, 8740), (2116, 8550), (2185, 8280), (2280, 7935), (2300, 7866), (2622, 6900), (2645, 6840), (2760, 6555), (2850, 6348), (3174, 5700), (3420, 5290), (3450, 5244), (3496, 5175), (3800, 4761), (3933, 4600), (4140, 4370), (4232, 4275)]