20371746080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{659}}^1\times {\mathrm{3943}}^1$

素因数の和:4631

約数の個数: 144

約数和(自身を含む): 56085099840

約数和(自身を除く): 35713353760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 659, 784, 980, 1120, 1318, 1568, 1960, 2636, 3295, 3920, 3943, 4613, 5272, 6590, 7840, 7886, 9226, 10544, 13180, 15772, 18452, 19715, 21088, 23065, 26360, 27601, 31544, 32291, 36904, 39430, 46130, 52720, 55202, 63088, 64582, 73808, 78860, 92260, 105440, 110404, 126176, 129164, 138005, 147616, 157720, 161455, 184520, 193207, 220808, 258328, 276010, 315440, 322910, 369040, 386414, 441616, 516656, 552020, 630880, 645820, 738080, 772828, 883232, 966035, 1033312, 1104040, 1291640, 1545656, 1932070, 2208080, 2583280, 2598437, 3091312, 3864140, 4416160, 5166560, 5196874, 6182624, 7728280, 10393748, 12992185, 15456560, 18189059, 20787496, 25984370, 30913120, 36378118, 41574992, 51968740, 72756236, 83149984, 90945295, 103937480, 127323413, 145512472, 181890590, 207874960, 254646826, 291024944, 363781180, 415749920, 509293652, 582049888, 636617065, 727562360, 1018587304, 1273234130, 1455124720, 2037174608, 2546468260, 2910249440, 4074349216, 5092936520, 10185873040, 20371746080]

約数ペア:

[(1, 20371746080), (2, 10185873040), (4, 5092936520), (5, 4074349216), (7, 2910249440), (8, 2546468260), (10, 2037174608), (14, 1455124720), (16, 1273234130), (20, 1018587304), (28, 727562360), (32, 636617065), (35, 582049888), (40, 509293652), (49, 415749920), (56, 363781180), (70, 291024944), (80, 254646826), (98, 207874960), (112, 181890590), (140, 145512472), (160, 127323413), (196, 103937480), (224, 90945295), (245, 83149984), (280, 72756236), (392, 51968740), (490, 41574992), (560, 36378118), (659, 30913120), (784, 25984370), (980, 20787496), (1120, 18189059), (1318, 15456560), (1568, 12992185), (1960, 10393748), (2636, 7728280), (3295, 6182624), (3920, 5196874), (3943, 5166560), (4613, 4416160), (5272, 3864140), (6590, 3091312), (7840, 2598437), (7886, 2583280), (9226, 2208080), (10544, 1932070), (13180, 1545656), (15772, 1291640), (18452, 1104040), (19715, 1033312), (21088, 966035), (23065, 883232), (26360, 772828), (27601, 738080), (31544, 645820), (32291, 630880), (36904, 552020), (39430, 516656), (46130, 441616), (52720, 386414), (55202, 369040), (63088, 322910), (64582, 315440), (73808, 276010), (78860, 258328), (92260, 220808), (105440, 193207), (110404, 184520), (126176, 161455), (129164, 157720), (138005, 147616)]