661201920

素因数分解:

$2^{10}\times 3^3\times 5^1\times {\mathrm{4783}}^1$

素因数の和:4817

約数の個数: 176

約数和(自身を含む): 2350283520

約数和(自身を除く): 1689081600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1728, 1920, 2160, 2304, 2560, 2880, 3072, 3456, 3840, 4320, 4608, 4783, 5120, 5760, 6912, 7680, 8640, 9216, 9566, 11520, 13824, 14349, 15360, 17280, 19132, 23040, 23915, 27648, 28698, 34560, 38264, 43047, 46080, 47830, 57396, 69120, 71745, 76528, 86094, 95660, 114792, 129141, 138240, 143490, 153056, 172188, 191320, 215235, 229584, 258282, 286980, 306112, 344376, 382640, 430470, 459168, 516564, 573960, 612224, 645705, 688752, 765280, 860940, 918336, 1033128, 1147920, 1224448, 1291410, 1377504, 1530560, 1721880, 1836672, 2066256, 2295840, 2448896, 2582820, 2755008, 3061120, 3443760, 3673344, 4132512, 4591680, 4897792, 5165640, 5510016, 6122240, 6887520, 7346688, 8265024, 9183360, 10331280, 11020032, 12244480, 13775040, 14693376, 16530048, 18366720, 20662560, 22040064, 24488960, 27550080, 33060096, 36733440, 41325120, 44080128, 55100160, 66120192, 73466880, 82650240, 110200320, 132240384, 165300480, 220400640, 330600960, 661201920]

約数ペア:

[(1, 661201920), (2, 330600960), (3, 220400640), (4, 165300480), (5, 132240384), (6, 110200320), (8, 82650240), (9, 73466880), (10, 66120192), (12, 55100160), (15, 44080128), (16, 41325120), (18, 36733440), (20, 33060096), (24, 27550080), (27, 24488960), (30, 22040064), (32, 20662560), (36, 18366720), (40, 16530048), (45, 14693376), (48, 13775040), (54, 12244480), (60, 11020032), (64, 10331280), (72, 9183360), (80, 8265024), (90, 7346688), (96, 6887520), (108, 6122240), (120, 5510016), (128, 5165640), (135, 4897792), (144, 4591680), (160, 4132512), (180, 3673344), (192, 3443760), (216, 3061120), (240, 2755008), (256, 2582820), (270, 2448896), (288, 2295840), (320, 2066256), (360, 1836672), (384, 1721880), (432, 1530560), (480, 1377504), (512, 1291410), (540, 1224448), (576, 1147920), (640, 1033128), (720, 918336), (768, 860940), (864, 765280), (960, 688752), (1024, 645705), (1080, 612224), (1152, 573960), (1280, 516564), (1440, 459168), (1536, 430470), (1728, 382640), (1920, 344376), (2160, 306112), (2304, 286980), (2560, 258282), (2880, 229584), (3072, 215235), (3456, 191320), (3840, 172188), (4320, 153056), (4608, 143490), (4783, 138240), (5120, 129141), (5760, 114792), (6912, 95660), (7680, 86094), (8640, 76528), (9216, 71745), (9566, 69120), (11520, 57396), (13824, 47830), (14349, 46080), (15360, 43047), (17280, 38264), (19132, 34560), (23040, 28698), (23915, 27648)]