20510211960

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{142789}}^1$

素因数の和:142835

約数の個数: 256

約数和(自身を含む): 82247040000

約数和(自身を除く): 61736828040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 315, 342, 360, 378, 380, 399, 420, 456, 504, 513, 532, 540, 570, 630, 665, 684, 756, 760, 798, 840, 855, 945, 1026, 1064, 1080, 1140, 1197, 1260, 1330, 1368, 1512, 1596, 1710, 1890, 1995, 2052, 2280, 2394, 2520, 2565, 2660, 3192, 3420, 3591, 3780, 3990, 4104, 4788, 5130, 5320, 5985, 6840, 7182, 7560, 7980, 9576, 10260, 11970, 14364, 15960, 17955, 20520, 23940, 28728, 35910, 47880, 71820, 142789, 143640, 285578, 428367, 571156, 713945, 856734, 999523, 1142312, 1285101, 1427890, 1713468, 1999046, 2141835, 2570202, 2712991, 2855780, 2998569, 3426936, 3855303, 3998092, 4283670, 4997615, 5140404, 5425982, 5711560, 5997138, 6425505, 7710606, 7996184, 8138973, 8567340, 8995707, 9995230, 10280808, 10851964, 11994276, 12851010, 13564955, 14992845, 15421212, 16277946, 17134680, 17991414, 18990937, 19276515, 19990460, 21703928, 23988552, 24416919, 25702020, 26987121, 27129910, 29985690, 30842424, 32555892, 35982828, 37981874, 38553030, 39980920, 40694865, 44978535, 48833838, 51404040, 53974242, 54259820, 56972811, 59971380, 65111784, 71965656, 73250757, 75963748, 77106060, 81389730, 89957070, 94954685, 97667676, 107948484, 108519640, 113945622, 119942760, 122084595, 134935605, 146501514, 151927496, 154212120, 162779460, 170918433, 179914140, 189909370, 195335352, 215896968, 227891244, 244169190, 269871210, 284864055, 293003028, 325558920, 341836866, 359828280, 366253785, 379818740, 455782488, 488338380, 512755299, 539742420, 569728110, 586006056, 683673732, 732507570, 759637480, 854592165, 976676760, 1025510598, 1079484840, 1139456220, 1367347464, 1465015140, 1709184330, 2051021196, 2278912440, 2563776495, 2930030280, 3418368660, 4102042392, 5127552990, 6836737320, 10255105980, 20510211960]

約数ペア:

[(1, 20510211960), (2, 10255105980), (3, 6836737320), (4, 5127552990), (5, 4102042392), (6, 3418368660), (7, 2930030280), (8, 2563776495), (9, 2278912440), (10, 2051021196), (12, 1709184330), (14, 1465015140), (15, 1367347464), (18, 1139456220), (19, 1079484840), (20, 1025510598), (21, 976676760), (24, 854592165), (27, 759637480), (28, 732507570), (30, 683673732), (35, 586006056), (36, 569728110), (38, 539742420), (40, 512755299), (42, 488338380), (45, 455782488), (54, 379818740), (56, 366253785), (57, 359828280), (60, 341836866), (63, 325558920), (70, 293003028), (72, 284864055), (76, 269871210), (84, 244169190), (90, 227891244), (95, 215896968), (105, 195335352), (108, 189909370), (114, 179914140), (120, 170918433), (126, 162779460), (133, 154212120), (135, 151927496), (140, 146501514), (152, 134935605), (168, 122084595), (171, 119942760), (180, 113945622), (189, 108519640), (190, 107948484), (210, 97667676), (216, 94954685), (228, 89957070), (252, 81389730), (266, 77106060), (270, 75963748), (280, 73250757), (285, 71965656), (315, 65111784), (342, 59971380), (360, 56972811), (378, 54259820), (380, 53974242), (399, 51404040), (420, 48833838), (456, 44978535), (504, 40694865), (513, 39980920), (532, 38553030), (540, 37981874), (570, 35982828), (630, 32555892), (665, 30842424), (684, 29985690), (756, 27129910), (760, 26987121), (798, 25702020), (840, 24416919), (855, 23988552), (945, 21703928), (1026, 19990460), (1064, 19276515), (1080, 18990937), (1140, 17991414), (1197, 17134680), (1260, 16277946), (1330, 15421212), (1368, 14992845), (1512, 13564955), (1596, 12851010), (1710, 11994276), (1890, 10851964), (1995, 10280808), (2052, 9995230), (2280, 8995707), (2394, 8567340), (2520, 8138973), (2565, 7996184), (2660, 7710606), (3192, 6425505), (3420, 5997138), (3591, 5711560), (3780, 5425982), (3990, 5140404), (4104, 4997615), (4788, 4283670), (5130, 3998092), (5320, 3855303), (5985, 3426936), (6840, 2998569), (7182, 2855780), (7560, 2712991), (7980, 2570202), (9576, 2141835), (10260, 1999046), (11970, 1713468), (14364, 1427890), (15960, 1285101), (17955, 1142312), (20520, 999523), (23940, 856734), (28728, 713945), (35910, 571156), (47880, 428367), (71820, 285578), (142789, 143640)]