19701377920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1117}}^1$

素因数の和:1301

約数の個数: 256

約数和(自身を含む): 56050974720

約数和(自身を除く): 36349596800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 127, 128, 140, 155, 160, 217, 224, 248, 254, 280, 310, 320, 434, 448, 496, 508, 560, 620, 635, 640, 868, 889, 896, 992, 1016, 1085, 1117, 1120, 1240, 1270, 1736, 1778, 1984, 2032, 2170, 2234, 2240, 2480, 2540, 3472, 3556, 3937, 3968, 4064, 4340, 4445, 4468, 4480, 4960, 5080, 5585, 6944, 7112, 7819, 7874, 8128, 8680, 8890, 8936, 9920, 10160, 11170, 13888, 14224, 15638, 15748, 16256, 17360, 17780, 17872, 19685, 19840, 20320, 22340, 27559, 27776, 28448, 31276, 31496, 34627, 34720, 35560, 35744, 39095, 39370, 40640, 44680, 55118, 56896, 62552, 62992, 69254, 69440, 71120, 71488, 78190, 78740, 81280, 89360, 110236, 113792, 125104, 125984, 137795, 138508, 138880, 141859, 142240, 142976, 156380, 157480, 173135, 178720, 220472, 242389, 250208, 251968, 275590, 277016, 283718, 284480, 312760, 314960, 346270, 357440, 440944, 484778, 500416, 503936, 551180, 554032, 567436, 568960, 625520, 629920, 692540, 709295, 714880, 881888, 969556, 993013, 1000832, 1102360, 1108064, 1134872, 1211945, 1251040, 1259840, 1385080, 1418590, 1763776, 1939112, 1986026, 2204720, 2216128, 2269744, 2423890, 2502080, 2519680, 2770160, 2837180, 3527552, 3878224, 3972052, 4397629, 4409440, 4432256, 4539488, 4847780, 4965065, 5004160, 5540320, 5674360, 7756448, 7944104, 8795258, 8818880, 9078976, 9695560, 9930130, 11080640, 11348720, 15512896, 15888208, 17590516, 17637760, 18157952, 19391120, 19860260, 21988145, 22161280, 22697440, 30783403, 31025792, 31776416, 35181032, 38782240, 39720520, 43976290, 45394880, 61566806, 63552832, 70362064, 77564480, 79441040, 87952580, 90789760, 123133612, 127105664, 140724128, 153917015, 155128960, 158882080, 175905160, 246267224, 281448256, 307834030, 317764160, 351810320, 492534448, 562896512, 615668060, 635528320, 703620640, 985068896, 1231336120, 1407241280, 1970137792, 2462672240, 2814482560, 3940275584, 4925344480, 9850688960, 19701377920]

約数ペア:

[(1, 19701377920), (2, 9850688960), (4, 4925344480), (5, 3940275584), (7, 2814482560), (8, 2462672240), (10, 1970137792), (14, 1407241280), (16, 1231336120), (20, 985068896), (28, 703620640), (31, 635528320), (32, 615668060), (35, 562896512), (40, 492534448), (56, 351810320), (62, 317764160), (64, 307834030), (70, 281448256), (80, 246267224), (112, 175905160), (124, 158882080), (127, 155128960), (128, 153917015), (140, 140724128), (155, 127105664), (160, 123133612), (217, 90789760), (224, 87952580), (248, 79441040), (254, 77564480), (280, 70362064), (310, 63552832), (320, 61566806), (434, 45394880), (448, 43976290), (496, 39720520), (508, 38782240), (560, 35181032), (620, 31776416), (635, 31025792), (640, 30783403), (868, 22697440), (889, 22161280), (896, 21988145), (992, 19860260), (1016, 19391120), (1085, 18157952), (1117, 17637760), (1120, 17590516), (1240, 15888208), (1270, 15512896), (1736, 11348720), (1778, 11080640), (1984, 9930130), (2032, 9695560), (2170, 9078976), (2234, 8818880), (2240, 8795258), (2480, 7944104), (2540, 7756448), (3472, 5674360), (3556, 5540320), (3937, 5004160), (3968, 4965065), (4064, 4847780), (4340, 4539488), (4445, 4432256), (4468, 4409440), (4480, 4397629), (4960, 3972052), (5080, 3878224), (5585, 3527552), (6944, 2837180), (7112, 2770160), (7819, 2519680), (7874, 2502080), (8128, 2423890), (8680, 2269744), (8890, 2216128), (8936, 2204720), (9920, 1986026), (10160, 1939112), (11170, 1763776), (13888, 1418590), (14224, 1385080), (15638, 1259840), (15748, 1251040), (16256, 1211945), (17360, 1134872), (17780, 1108064), (17872, 1102360), (19685, 1000832), (19840, 993013), (20320, 969556), (22340, 881888), (27559, 714880), (27776, 709295), (28448, 692540), (31276, 629920), (31496, 625520), (34627, 568960), (34720, 567436), (35560, 554032), (35744, 551180), (39095, 503936), (39370, 500416), (40640, 484778), (44680, 440944), (55118, 357440), (56896, 346270), (62552, 314960), (62992, 312760), (69254, 284480), (69440, 283718), (71120, 277016), (71488, 275590), (78190, 251968), (78740, 250208), (81280, 242389), (89360, 220472), (110236, 178720), (113792, 173135), (125104, 157480), (125984, 156380), (137795, 142976), (138508, 142240), (138880, 141859)]