81283520

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:526

約数の個数: 112

約数和(自身を含む): 211226400

約数和(自身を除く): 129942880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 64, 76, 80, 95, 116, 145, 152, 160, 190, 232, 290, 304, 320, 380, 461, 464, 551, 580, 608, 760, 922, 928, 1102, 1160, 1216, 1520, 1844, 1856, 2204, 2305, 2320, 2755, 3040, 3688, 4408, 4610, 4640, 5510, 6080, 7376, 8759, 8816, 9220, 9280, 11020, 13369, 14752, 17518, 17632, 18440, 22040, 26738, 29504, 35036, 35264, 36880, 43795, 44080, 53476, 66845, 70072, 73760, 87590, 88160, 106952, 133690, 140144, 147520, 175180, 176320, 213904, 254011, 267380, 280288, 350360, 427808, 508022, 534760, 560576, 700720, 855616, 1016044, 1069520, 1270055, 1401440, 2032088, 2139040, 2540110, 2802880, 4064176, 4278080, 5080220, 8128352, 10160440, 16256704, 20320880, 40641760, 81283520]

約数ペア:

[(1, 81283520), (2, 40641760), (4, 20320880), (5, 16256704), (8, 10160440), (10, 8128352), (16, 5080220), (19, 4278080), (20, 4064176), (29, 2802880), (32, 2540110), (38, 2139040), (40, 2032088), (58, 1401440), (64, 1270055), (76, 1069520), (80, 1016044), (95, 855616), (116, 700720), (145, 560576), (152, 534760), (160, 508022), (190, 427808), (232, 350360), (290, 280288), (304, 267380), (320, 254011), (380, 213904), (461, 176320), (464, 175180), (551, 147520), (580, 140144), (608, 133690), (760, 106952), (922, 88160), (928, 87590), (1102, 73760), (1160, 70072), (1216, 66845), (1520, 53476), (1844, 44080), (1856, 43795), (2204, 36880), (2305, 35264), (2320, 35036), (2755, 29504), (3040, 26738), (3688, 22040), (4408, 18440), (4610, 17632), (4640, 17518), (5510, 14752), (6080, 13369), (7376, 11020), (8759, 9280), (8816, 9220)]