1377647440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:262

約数の個数: 240

約数和(自身を含む): 3790471680

約数和(自身を除く): 2412824240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 169, 173, 190, 208, 247, 248, 260, 304, 310, 338, 346, 380, 403, 494, 496, 520, 589, 620, 676, 692, 760, 806, 845, 865, 988, 1040, 1178, 1235, 1240, 1352, 1384, 1520, 1612, 1690, 1730, 1976, 2015, 2249, 2356, 2470, 2480, 2704, 2768, 2945, 3211, 3224, 3287, 3380, 3460, 3952, 4030, 4498, 4712, 4940, 5239, 5363, 5890, 6422, 6448, 6574, 6760, 6920, 7657, 8060, 8996, 9424, 9880, 10478, 10726, 11245, 11780, 12844, 13148, 13520, 13840, 15314, 16055, 16120, 16435, 17992, 19760, 20956, 21452, 22490, 23560, 25688, 26195, 26296, 26815, 29237, 30628, 32110, 32240, 32870, 35984, 38285, 41912, 42731, 42904, 44980, 47120, 51376, 52390, 52592, 53630, 58474, 61256, 64220, 65740, 69719, 76570, 83824, 85462, 85808, 89960, 99541, 101897, 104780, 107260, 116948, 122512, 128440, 131480, 139438, 146185, 153140, 170924, 179920, 199082, 203794, 209560, 213655, 214520, 233896, 256880, 262960, 278876, 292370, 306280, 341848, 348595, 398164, 407588, 419120, 427310, 429040, 467792, 497705, 509485, 555503, 557752, 584740, 612560, 683696, 697190, 796328, 815176, 854620, 906347, 995410, 1018970, 1111006, 1115504, 1169480, 1324661, 1394380, 1592656, 1630352, 1709240, 1812694, 1990820, 2037940, 2222012, 2338960, 2649322, 2777515, 2788760, 3418480, 3625388, 3981640, 4075880, 4444024, 4531735, 5298644, 5555030, 5577520, 6623305, 7250776, 7963280, 8151760, 8888048, 9063470, 10597288, 11110060, 13246610, 14501552, 17220593, 18126940, 21194576, 22220120, 26493220, 34441186, 36253880, 44440240, 52986440, 68882372, 72507760, 86102965, 105972880, 137764744, 172205930, 275529488, 344411860, 688823720, 1377647440]

約数ペア:

[(1, 1377647440), (2, 688823720), (4, 344411860), (5, 275529488), (8, 172205930), (10, 137764744), (13, 105972880), (16, 86102965), (19, 72507760), (20, 68882372), (26, 52986440), (31, 44440240), (38, 36253880), (40, 34441186), (52, 26493220), (62, 22220120), (65, 21194576), (76, 18126940), (80, 17220593), (95, 14501552), (104, 13246610), (124, 11110060), (130, 10597288), (152, 9063470), (155, 8888048), (169, 8151760), (173, 7963280), (190, 7250776), (208, 6623305), (247, 5577520), (248, 5555030), (260, 5298644), (304, 4531735), (310, 4444024), (338, 4075880), (346, 3981640), (380, 3625388), (403, 3418480), (494, 2788760), (496, 2777515), (520, 2649322), (589, 2338960), (620, 2222012), (676, 2037940), (692, 1990820), (760, 1812694), (806, 1709240), (845, 1630352), (865, 1592656), (988, 1394380), (1040, 1324661), (1178, 1169480), (1235, 1115504), (1240, 1111006), (1352, 1018970), (1384, 995410), (1520, 906347), (1612, 854620), (1690, 815176), (1730, 796328), (1976, 697190), (2015, 683696), (2249, 612560), (2356, 584740), (2470, 557752), (2480, 555503), (2704, 509485), (2768, 497705), (2945, 467792), (3211, 429040), (3224, 427310), (3287, 419120), (3380, 407588), (3460, 398164), (3952, 348595), (4030, 341848), (4498, 306280), (4712, 292370), (4940, 278876), (5239, 262960), (5363, 256880), (5890, 233896), (6422, 214520), (6448, 213655), (6574, 209560), (6760, 203794), (6920, 199082), (7657, 179920), (8060, 170924), (8996, 153140), (9424, 146185), (9880, 139438), (10478, 131480), (10726, 128440), (11245, 122512), (11780, 116948), (12844, 107260), (13148, 104780), (13520, 101897), (13840, 99541), (15314, 89960), (16055, 85808), (16120, 85462), (16435, 83824), (17992, 76570), (19760, 69719), (20956, 65740), (21452, 64220), (22490, 61256), (23560, 58474), (25688, 53630), (26195, 52592), (26296, 52390), (26815, 51376), (29237, 47120), (30628, 44980), (32110, 42904), (32240, 42731), (32870, 41912), (35984, 38285)]