320522020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 944455680

約数和(自身を除く): 623933660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 23, 26, 28, 31, 35, 38, 46, 52, 62, 65, 70, 76, 91, 92, 95, 115, 124, 130, 133, 140, 155, 161, 169, 182, 190, 217, 230, 247, 260, 266, 299, 310, 322, 338, 364, 380, 403, 434, 437, 455, 460, 494, 532, 589, 598, 620, 644, 665, 676, 713, 805, 806, 845, 868, 874, 910, 988, 1085, 1178, 1183, 1196, 1235, 1330, 1426, 1495, 1610, 1612, 1690, 1729, 1748, 1820, 2015, 2093, 2170, 2185, 2356, 2366, 2470, 2660, 2821, 2852, 2945, 2990, 3059, 3211, 3220, 3380, 3458, 3565, 3887, 4030, 4123, 4186, 4340, 4370, 4732, 4940, 4991, 5239, 5642, 5681, 5890, 5915, 5980, 6118, 6422, 6916, 7130, 7657, 7774, 8060, 8246, 8372, 8645, 8740, 9269, 9982, 10465, 10478, 11284, 11362, 11780, 11830, 12236, 12844, 13547, 14105, 14260, 15295, 15314, 15548, 16055, 16492, 17290, 18538, 19435, 19964, 20615, 20930, 20956, 22477, 22724, 23660, 24955, 26195, 27094, 27209, 28210, 28405, 30590, 30628, 32110, 34580, 36673, 37076, 38285, 38870, 39767, 41230, 41860, 44954, 46345, 49910, 52390, 53599, 54188, 54418, 56420, 56810, 61180, 64220, 64883, 67735, 73346, 73853, 76570, 77740, 79534, 82460, 89908, 92690, 94829, 99541, 99820, 104780, 107198, 108836, 112385, 113620, 120497, 129766, 135470, 136045, 146692, 147706, 153140, 159068, 176111, 183365, 185380, 189658, 198835, 199082, 214396, 224770, 240994, 259532, 267995, 270940, 272090, 295412, 324415, 352222, 366730, 369265, 379316, 397670, 398164, 449540, 474145, 481988, 497705, 516971, 535990, 544180, 602485, 648830, 696787, 704444, 733460, 738530, 795340, 843479, 880555, 948290, 995410, 1033942, 1071980, 1204970, 1232777, 1297660, 1393574, 1477060, 1686958, 1761110, 1896580, 1990820, 2067884, 2289443, 2409940, 2465554, 2584855, 2787148, 3373916, 3483935, 3522220, 4217395, 4578886, 4931108, 5169710, 6163885, 6967870, 8434790, 9157772, 10339420, 11447215, 12327770, 13935740, 16026101, 16869580, 22894430, 24655540, 32052202, 45788860, 64104404, 80130505, 160261010, 320522020]

約数ペア:

[(1, 320522020), (2, 160261010), (4, 80130505), (5, 64104404), (7, 45788860), (10, 32052202), (13, 24655540), (14, 22894430), (19, 16869580), (20, 16026101), (23, 13935740), (26, 12327770), (28, 11447215), (31, 10339420), (35, 9157772), (38, 8434790), (46, 6967870), (52, 6163885), (62, 5169710), (65, 4931108), (70, 4578886), (76, 4217395), (91, 3522220), (92, 3483935), (95, 3373916), (115, 2787148), (124, 2584855), (130, 2465554), (133, 2409940), (140, 2289443), (155, 2067884), (161, 1990820), (169, 1896580), (182, 1761110), (190, 1686958), (217, 1477060), (230, 1393574), (247, 1297660), (260, 1232777), (266, 1204970), (299, 1071980), (310, 1033942), (322, 995410), (338, 948290), (364, 880555), (380, 843479), (403, 795340), (434, 738530), (437, 733460), (455, 704444), (460, 696787), (494, 648830), (532, 602485), (589, 544180), (598, 535990), (620, 516971), (644, 497705), (665, 481988), (676, 474145), (713, 449540), (805, 398164), (806, 397670), (845, 379316), (868, 369265), (874, 366730), (910, 352222), (988, 324415), (1085, 295412), (1178, 272090), (1183, 270940), (1196, 267995), (1235, 259532), (1330, 240994), (1426, 224770), (1495, 214396), (1610, 199082), (1612, 198835), (1690, 189658), (1729, 185380), (1748, 183365), (1820, 176111), (2015, 159068), (2093, 153140), (2170, 147706), (2185, 146692), (2356, 136045), (2366, 135470), (2470, 129766), (2660, 120497), (2821, 113620), (2852, 112385), (2945, 108836), (2990, 107198), (3059, 104780), (3211, 99820), (3220, 99541), (3380, 94829), (3458, 92690), (3565, 89908), (3887, 82460), (4030, 79534), (4123, 77740), (4186, 76570), (4340, 73853), (4370, 73346), (4732, 67735), (4940, 64883), (4991, 64220), (5239, 61180), (5642, 56810), (5681, 56420), (5890, 54418), (5915, 54188), (5980, 53599), (6118, 52390), (6422, 49910), (6916, 46345), (7130, 44954), (7657, 41860), (7774, 41230), (8060, 39767), (8246, 38870), (8372, 38285), (8645, 37076), (8740, 36673), (9269, 34580), (9982, 32110), (10465, 30628), (10478, 30590), (11284, 28405), (11362, 28210), (11780, 27209), (11830, 27094), (12236, 26195), (12844, 24955), (13547, 23660), (14105, 22724), (14260, 22477), (15295, 20956), (15314, 20930), (15548, 20615), (16055, 19964), (16492, 19435), (17290, 18538)]