81936119680

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1\times {\mathrm{1361}}^1$

素因数の和:2352

約数の個数: 128

約数和(自身を含む): 198050054400

約数和(自身を除く): 116113934720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 863, 872, 1090, 1361, 1726, 1744, 2180, 2722, 3452, 3488, 4315, 4360, 5444, 6805, 6904, 6976, 8630, 8720, 10888, 13610, 13808, 13952, 17260, 17440, 21776, 27220, 27616, 34520, 34880, 43552, 54440, 55232, 69040, 69760, 87104, 94067, 108880, 110464, 138080, 148349, 174208, 188134, 217760, 276160, 296698, 376268, 435520, 470335, 552320, 593396, 741745, 752536, 871040, 940670, 1174543, 1186792, 1483490, 1505072, 1881340, 2349086, 2373584, 2966980, 3010144, 3762680, 4698172, 4747168, 5872715, 5933960, 6020288, 7525360, 9396344, 9494336, 11745430, 11867920, 12040576, 15050720, 18792688, 18988672, 23490860, 23735840, 30101440, 37585376, 46981720, 47471680, 60202880, 75170752, 93963440, 94943360, 128025187, 150341504, 187926880, 256050374, 375853760, 512100748, 640125935, 751707520, 1024201496, 1280251870, 2048402992, 2560503740, 4096805984, 5121007480, 8193611968, 10242014960, 16387223936, 20484029920, 40968059840, 81936119680]

約数ペア:

[(1, 81936119680), (2, 40968059840), (4, 20484029920), (5, 16387223936), (8, 10242014960), (10, 8193611968), (16, 5121007480), (20, 4096805984), (32, 2560503740), (40, 2048402992), (64, 1280251870), (80, 1024201496), (109, 751707520), (128, 640125935), (160, 512100748), (218, 375853760), (320, 256050374), (436, 187926880), (545, 150341504), (640, 128025187), (863, 94943360), (872, 93963440), (1090, 75170752), (1361, 60202880), (1726, 47471680), (1744, 46981720), (2180, 37585376), (2722, 30101440), (3452, 23735840), (3488, 23490860), (4315, 18988672), (4360, 18792688), (5444, 15050720), (6805, 12040576), (6904, 11867920), (6976, 11745430), (8630, 9494336), (8720, 9396344), (10888, 7525360), (13610, 6020288), (13808, 5933960), (13952, 5872715), (17260, 4747168), (17440, 4698172), (21776, 3762680), (27220, 3010144), (27616, 2966980), (34520, 2373584), (34880, 2349086), (43552, 1881340), (54440, 1505072), (55232, 1483490), (69040, 1186792), (69760, 1174543), (87104, 940670), (94067, 871040), (108880, 752536), (110464, 741745), (138080, 593396), (148349, 552320), (174208, 470335), (188134, 435520), (217760, 376268), (276160, 296698)]