20915989920

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{5563}}^1$

素因数の和:5964

約数の個数: 288

約数和(自身を含む): 81805756032

約数和(自身を除く): 60889766112

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 373, 420, 480, 504, 560, 630, 672, 720, 746, 840, 1008, 1119, 1120, 1260, 1440, 1492, 1680, 1865, 2016, 2238, 2520, 2611, 2984, 3357, 3360, 3730, 4476, 5040, 5222, 5563, 5595, 5968, 6714, 7460, 7833, 8952, 10080, 10444, 11126, 11190, 11936, 13055, 13428, 14920, 15666, 16689, 16785, 17904, 20888, 22252, 22380, 23499, 26110, 26856, 27815, 29840, 31332, 33378, 33570, 35808, 38941, 39165, 41776, 44504, 44760, 46998, 50067, 52220, 53712, 55630, 59680, 62664, 66756, 67140, 77882, 78330, 83445, 83552, 89008, 89520, 93996, 100134, 104440, 107424, 111260, 116823, 117495, 125328, 133512, 134280, 155764, 156660, 166890, 178016, 179040, 187992, 194705, 200268, 208880, 222520, 233646, 234990, 250335, 250656, 267024, 268560, 311528, 313320, 333780, 350469, 375984, 389410, 400536, 417760, 445040, 467292, 469980, 500670, 534048, 537120, 584115, 623056, 626640, 667560, 700938, 751968, 778820, 801072, 890080, 934584, 939960, 1001340, 1168230, 1246112, 1253280, 1335120, 1401876, 1557640, 1602144, 1752345, 1869168, 1879920, 2002680, 2074999, 2336460, 2670240, 2803752, 3115280, 3504690, 3738336, 3759840, 4005360, 4149998, 4672920, 5607504, 6224997, 6230560, 7009380, 8010720, 8299996, 9345840, 10374995, 11215008, 12449994, 14018760, 14524993, 16599992, 18674991, 18691680, 20749990, 24899988, 28037520, 29049986, 31124985, 33199984, 37349982, 41499980, 43574979, 49799976, 56075040, 58099972, 62249970, 66399968, 72624965, 74699964, 82999960, 87149958, 93374955, 99599952, 116199944, 124499940, 130724937, 145249930, 149399928, 165999920, 174299916, 186749910, 199199904, 217874895, 232399888, 248999880, 261449874, 290499860, 298799856, 331999840, 348599832, 373499820, 435749790, 464799776, 497999760, 522899748, 580999720, 597599712, 653624685, 697199664, 746999640, 871499580, 995999520, 1045799496, 1161999440, 1307249370, 1394399328, 1493999280, 1742999160, 2091598992, 2323998880, 2614498740, 2987998560, 3485998320, 4183197984, 5228997480, 6971996640, 10457994960, 20915989920]

約数ペア:

[(1, 20915989920), (2, 10457994960), (3, 6971996640), (4, 5228997480), (5, 4183197984), (6, 3485998320), (7, 2987998560), (8, 2614498740), (9, 2323998880), (10, 2091598992), (12, 1742999160), (14, 1493999280), (15, 1394399328), (16, 1307249370), (18, 1161999440), (20, 1045799496), (21, 995999520), (24, 871499580), (28, 746999640), (30, 697199664), (32, 653624685), (35, 597599712), (36, 580999720), (40, 522899748), (42, 497999760), (45, 464799776), (48, 435749790), (56, 373499820), (60, 348599832), (63, 331999840), (70, 298799856), (72, 290499860), (80, 261449874), (84, 248999880), (90, 232399888), (96, 217874895), (105, 199199904), (112, 186749910), (120, 174299916), (126, 165999920), (140, 149399928), (144, 145249930), (160, 130724937), (168, 124499940), (180, 116199944), (210, 99599952), (224, 93374955), (240, 87149958), (252, 82999960), (280, 74699964), (288, 72624965), (315, 66399968), (336, 62249970), (360, 58099972), (373, 56075040), (420, 49799976), (480, 43574979), (504, 41499980), (560, 37349982), (630, 33199984), (672, 31124985), (720, 29049986), (746, 28037520), (840, 24899988), (1008, 20749990), (1119, 18691680), (1120, 18674991), (1260, 16599992), (1440, 14524993), (1492, 14018760), (1680, 12449994), (1865, 11215008), (2016, 10374995), (2238, 9345840), (2520, 8299996), (2611, 8010720), (2984, 7009380), (3357, 6230560), (3360, 6224997), (3730, 5607504), (4476, 4672920), (5040, 4149998), (5222, 4005360), (5563, 3759840), (5595, 3738336), (5968, 3504690), (6714, 3115280), (7460, 2803752), (7833, 2670240), (8952, 2336460), (10080, 2074999), (10444, 2002680), (11126, 1879920), (11190, 1869168), (11936, 1752345), (13055, 1602144), (13428, 1557640), (14920, 1401876), (15666, 1335120), (16689, 1253280), (16785, 1246112), (17904, 1168230), (20888, 1001340), (22252, 939960), (22380, 934584), (23499, 890080), (26110, 801072), (26856, 778820), (27815, 751968), (29840, 700938), (31332, 667560), (33378, 626640), (33570, 623056), (35808, 584115), (38941, 537120), (39165, 534048), (41776, 500670), (44504, 469980), (44760, 467292), (46998, 445040), (50067, 417760), (52220, 400536), (53712, 389410), (55630, 375984), (59680, 350469), (62664, 333780), (66756, 313320), (67140, 311528), (77882, 268560), (78330, 267024), (83445, 250656), (83552, 250335), (89008, 234990), (89520, 233646), (93996, 222520), (100134, 208880), (104440, 200268), (107424, 194705), (111260, 187992), (116823, 179040), (117495, 178016), (125328, 166890), (133512, 156660), (134280, 155764)]