19975795840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31181}}^1$

素因数の和:31231

約数の個数: 256

約数和(自身を含む): 64120170240

約数和(自身を除く): 44144374400

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 32, 35, 40, 44, 52, 55, 56, 64, 65, 70, 77, 80, 88, 91, 104, 110, 112, 128, 130, 140, 143, 154, 160, 176, 182, 208, 220, 224, 260, 280, 286, 308, 320, 352, 364, 385, 416, 440, 448, 455, 520, 560, 572, 616, 640, 704, 715, 728, 770, 832, 880, 896, 910, 1001, 1040, 1120, 1144, 1232, 1408, 1430, 1456, 1540, 1664, 1760, 1820, 2002, 2080, 2240, 2288, 2464, 2860, 2912, 3080, 3520, 3640, 4004, 4160, 4480, 4576, 4928, 5005, 5720, 5824, 6160, 7040, 7280, 8008, 8320, 9152, 9856, 10010, 11440, 11648, 12320, 14560, 16016, 18304, 20020, 22880, 24640, 29120, 31181, 32032, 40040, 45760, 49280, 58240, 62362, 64064, 80080, 91520, 124724, 128128, 155905, 160160, 218267, 249448, 311810, 320320, 342991, 405353, 436534, 498896, 623620, 640640, 685982, 810706, 873068, 997792, 1091335, 1247240, 1371964, 1621412, 1714955, 1746136, 1995584, 2026765, 2182670, 2400937, 2494480, 2743928, 2837471, 3242824, 3429910, 3492272, 3991168, 4053530, 4365340, 4458883, 4801874, 4988960, 5487856, 5674942, 6485648, 6859820, 6984544, 8107060, 8730680, 8917766, 9603748, 9977920, 10975712, 11349884, 12004685, 12971296, 13719640, 13969088, 14187355, 16214120, 17461360, 17835532, 19207496, 19955840, 21951424, 22294415, 22699768, 24009370, 25942592, 27439280, 27938176, 28374710, 31212181, 32428240, 34922720, 35671064, 38414992, 43902848, 44588830, 45399536, 48018740, 51885184, 54878560, 56749420, 62424362, 64856480, 69845440, 71342128, 76829984, 89177660, 90799072, 96037480, 109757120, 113498840, 124848724, 129712960, 139690880, 142684256, 153659968, 156060905, 178355320, 181598144, 192074960, 219514240, 226997680, 249697448, 259425920, 285368512, 307319936, 312121810, 356710640, 363196288, 384149920, 453995360, 499394896, 570737024, 624243620, 713421280, 768299840, 907990720, 998789792, 1248487240, 1426842560, 1536599680, 1815981440, 1997579584, 2496974480, 2853685120, 3995159168, 4993948960, 9987897920, 19975795840]

約数ペア:

[(1, 19975795840), (2, 9987897920), (4, 4993948960), (5, 3995159168), (7, 2853685120), (8, 2496974480), (10, 1997579584), (11, 1815981440), (13, 1536599680), (14, 1426842560), (16, 1248487240), (20, 998789792), (22, 907990720), (26, 768299840), (28, 713421280), (32, 624243620), (35, 570737024), (40, 499394896), (44, 453995360), (52, 384149920), (55, 363196288), (56, 356710640), (64, 312121810), (65, 307319936), (70, 285368512), (77, 259425920), (80, 249697448), (88, 226997680), (91, 219514240), (104, 192074960), (110, 181598144), (112, 178355320), (128, 156060905), (130, 153659968), (140, 142684256), (143, 139690880), (154, 129712960), (160, 124848724), (176, 113498840), (182, 109757120), (208, 96037480), (220, 90799072), (224, 89177660), (260, 76829984), (280, 71342128), (286, 69845440), (308, 64856480), (320, 62424362), (352, 56749420), (364, 54878560), (385, 51885184), (416, 48018740), (440, 45399536), (448, 44588830), (455, 43902848), (520, 38414992), (560, 35671064), (572, 34922720), (616, 32428240), (640, 31212181), (704, 28374710), (715, 27938176), (728, 27439280), (770, 25942592), (832, 24009370), (880, 22699768), (896, 22294415), (910, 21951424), (1001, 19955840), (1040, 19207496), (1120, 17835532), (1144, 17461360), (1232, 16214120), (1408, 14187355), (1430, 13969088), (1456, 13719640), (1540, 12971296), (1664, 12004685), (1760, 11349884), (1820, 10975712), (2002, 9977920), (2080, 9603748), (2240, 8917766), (2288, 8730680), (2464, 8107060), (2860, 6984544), (2912, 6859820), (3080, 6485648), (3520, 5674942), (3640, 5487856), (4004, 4988960), (4160, 4801874), (4480, 4458883), (4576, 4365340), (4928, 4053530), (5005, 3991168), (5720, 3492272), (5824, 3429910), (6160, 3242824), (7040, 2837471), (7280, 2743928), (8008, 2494480), (8320, 2400937), (9152, 2182670), (9856, 2026765), (10010, 1995584), (11440, 1746136), (11648, 1714955), (12320, 1621412), (14560, 1371964), (16016, 1247240), (18304, 1091335), (20020, 997792), (22880, 873068), (24640, 810706), (29120, 685982), (31181, 640640), (32032, 623620), (40040, 498896), (45760, 436534), (49280, 405353), (58240, 342991), (62362, 320320), (64064, 311810), (80080, 249448), (91520, 218267), (124724, 160160), (128128, 155905)]