81652480

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{701}}^1$

素因数の和:742

約数の個数: 144

約数和(自身を含む): 241061184

約数和(自身を除く): 159408704

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 256, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 701, 728, 832, 896, 910, 1040, 1120, 1280, 1402, 1456, 1664, 1792, 1820, 2080, 2240, 2804, 2912, 3328, 3505, 3640, 4160, 4480, 4907, 5608, 5824, 7010, 7280, 8320, 8960, 9113, 9814, 11216, 11648, 14020, 14560, 16640, 18226, 19628, 22432, 23296, 24535, 28040, 29120, 36452, 39256, 44864, 45565, 49070, 56080, 58240, 63791, 72904, 78512, 89728, 91130, 98140, 112160, 116480, 127582, 145808, 157024, 179456, 182260, 196280, 224320, 255164, 291616, 314048, 318955, 364520, 392560, 448640, 510328, 583232, 628096, 637910, 729040, 785120, 897280, 1020656, 1166464, 1256192, 1275820, 1458080, 1570240, 2041312, 2332928, 2551640, 2916160, 3140480, 4082624, 5103280, 5832320, 6280960, 8165248, 10206560, 11664640, 16330496, 20413120, 40826240, 81652480]

約数ペア:

[(1, 81652480), (2, 40826240), (4, 20413120), (5, 16330496), (7, 11664640), (8, 10206560), (10, 8165248), (13, 6280960), (14, 5832320), (16, 5103280), (20, 4082624), (26, 3140480), (28, 2916160), (32, 2551640), (35, 2332928), (40, 2041312), (52, 1570240), (56, 1458080), (64, 1275820), (65, 1256192), (70, 1166464), (80, 1020656), (91, 897280), (104, 785120), (112, 729040), (128, 637910), (130, 628096), (140, 583232), (160, 510328), (182, 448640), (208, 392560), (224, 364520), (256, 318955), (260, 314048), (280, 291616), (320, 255164), (364, 224320), (416, 196280), (448, 182260), (455, 179456), (520, 157024), (560, 145808), (640, 127582), (701, 116480), (728, 112160), (832, 98140), (896, 91130), (910, 89728), (1040, 78512), (1120, 72904), (1280, 63791), (1402, 58240), (1456, 56080), (1664, 49070), (1792, 45565), (1820, 44864), (2080, 39256), (2240, 36452), (2804, 29120), (2912, 28040), (3328, 24535), (3505, 23296), (3640, 22432), (4160, 19628), (4480, 18226), (4907, 16640), (5608, 14560), (5824, 14020), (7010, 11648), (7280, 11216), (8320, 9814), (8960, 9113)]