20176992080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1\times {\mathrm{547}}^1$

素因数の和:1097

約数の個数: 160

約数和(自身を含む): 54144153600

約数和(自身を除く): 33967161520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 331, 398, 547, 560, 662, 796, 995, 1094, 1324, 1393, 1592, 1655, 1990, 2188, 2317, 2648, 2735, 2786, 3184, 3310, 3829, 3980, 4376, 4634, 5296, 5470, 5572, 6620, 6965, 7658, 7960, 8752, 9268, 10940, 11144, 11585, 13240, 13930, 15316, 15920, 18536, 19145, 21880, 22288, 23170, 26480, 27860, 30632, 37072, 38290, 43760, 46340, 55720, 61264, 65869, 76580, 92680, 108853, 111440, 131738, 153160, 181057, 185360, 217706, 263476, 306320, 329345, 362114, 435412, 461083, 526952, 544265, 658690, 724228, 761971, 870824, 905285, 922166, 1053904, 1088530, 1267399, 1317380, 1448456, 1523942, 1741648, 1810570, 1844332, 2177060, 2305415, 2534798, 2634760, 2896912, 3047884, 3621140, 3688664, 3809855, 4354120, 4610830, 5069596, 5269520, 6095768, 6336995, 7242280, 7377328, 7619710, 8708240, 9221660, 10139192, 12191536, 12673990, 14484560, 15239420, 18443320, 20278384, 25347980, 30478840, 36030343, 36886640, 50695960, 60957680, 72060686, 101391920, 144121372, 180151715, 252212401, 288242744, 360303430, 504424802, 576485488, 720606860, 1008849604, 1261062005, 1441213720, 2017699208, 2522124010, 2882427440, 4035398416, 5044248020, 10088496040, 20176992080]

約数ペア:

[(1, 20176992080), (2, 10088496040), (4, 5044248020), (5, 4035398416), (7, 2882427440), (8, 2522124010), (10, 2017699208), (14, 1441213720), (16, 1261062005), (20, 1008849604), (28, 720606860), (35, 576485488), (40, 504424802), (56, 360303430), (70, 288242744), (80, 252212401), (112, 180151715), (140, 144121372), (199, 101391920), (280, 72060686), (331, 60957680), (398, 50695960), (547, 36886640), (560, 36030343), (662, 30478840), (796, 25347980), (995, 20278384), (1094, 18443320), (1324, 15239420), (1393, 14484560), (1592, 12673990), (1655, 12191536), (1990, 10139192), (2188, 9221660), (2317, 8708240), (2648, 7619710), (2735, 7377328), (2786, 7242280), (3184, 6336995), (3310, 6095768), (3829, 5269520), (3980, 5069596), (4376, 4610830), (4634, 4354120), (5296, 3809855), (5470, 3688664), (5572, 3621140), (6620, 3047884), (6965, 2896912), (7658, 2634760), (7960, 2534798), (8752, 2305415), (9268, 2177060), (10940, 1844332), (11144, 1810570), (11585, 1741648), (13240, 1523942), (13930, 1448456), (15316, 1317380), (15920, 1267399), (18536, 1088530), (19145, 1053904), (21880, 922166), (22288, 905285), (23170, 870824), (26480, 761971), (27860, 724228), (30632, 658690), (37072, 544265), (38290, 526952), (43760, 461083), (46340, 435412), (55720, 362114), (61264, 329345), (65869, 306320), (76580, 263476), (92680, 217706), (108853, 185360), (111440, 181057), (131738, 153160)]