81481950

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 240

約数和(自身を含む): 259269120

約数和(自身を除く): 177787170

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 25, 27, 30, 31, 33, 45, 50, 54, 55, 59, 62, 66, 75, 81, 90, 93, 99, 110, 118, 135, 150, 155, 162, 165, 177, 186, 198, 225, 270, 275, 279, 295, 297, 310, 330, 341, 354, 405, 450, 465, 495, 531, 550, 558, 590, 594, 649, 675, 682, 775, 810, 825, 837, 885, 891, 930, 990, 1023, 1062, 1298, 1350, 1395, 1475, 1485, 1550, 1593, 1650, 1674, 1705, 1770, 1782, 1829, 1947, 2025, 2046, 2325, 2475, 2511, 2655, 2790, 2950, 2970, 3069, 3186, 3245, 3410, 3658, 3894, 4050, 4185, 4425, 4455, 4650, 4779, 4950, 5022, 5115, 5310, 5487, 5841, 6138, 6490, 6975, 7425, 7965, 8370, 8525, 8850, 8910, 9145, 9207, 9558, 9735, 10230, 10974, 11682, 12555, 13275, 13950, 14850, 15345, 15930, 16225, 16461, 17050, 17523, 18290, 18414, 19470, 20119, 20925, 22275, 23895, 25110, 25575, 26550, 27435, 27621, 29205, 30690, 32450, 32922, 35046, 39825, 40238, 41850, 44550, 45725, 46035, 47790, 48675, 49383, 51150, 52569, 54870, 55242, 58410, 60357, 62775, 76725, 79650, 82305, 87615, 91450, 92070, 97350, 98766, 100595, 105138, 119475, 120714, 125550, 137175, 138105, 146025, 148149, 153450, 164610, 175230, 181071, 201190, 230175, 238950, 246915, 262845, 274350, 276210, 292050, 296298, 301785, 362142, 411525, 438075, 460350, 493830, 502975, 525690, 543213, 603570, 690525, 740745, 823050, 876150, 905355, 1005950, 1086426, 1234575, 1314225, 1381050, 1481490, 1508925, 1629639, 1810710, 2469150, 2628450, 2716065, 3017850, 3259278, 3703725, 4526775, 5432130, 7407450, 8148195, 9053550, 13580325, 16296390, 27160650, 40740975, 81481950]

約数ペア:

[(1, 81481950), (2, 40740975), (3, 27160650), (5, 16296390), (6, 13580325), (9, 9053550), (10, 8148195), (11, 7407450), (15, 5432130), (18, 4526775), (22, 3703725), (25, 3259278), (27, 3017850), (30, 2716065), (31, 2628450), (33, 2469150), (45, 1810710), (50, 1629639), (54, 1508925), (55, 1481490), (59, 1381050), (62, 1314225), (66, 1234575), (75, 1086426), (81, 1005950), (90, 905355), (93, 876150), (99, 823050), (110, 740745), (118, 690525), (135, 603570), (150, 543213), (155, 525690), (162, 502975), (165, 493830), (177, 460350), (186, 438075), (198, 411525), (225, 362142), (270, 301785), (275, 296298), (279, 292050), (295, 276210), (297, 274350), (310, 262845), (330, 246915), (341, 238950), (354, 230175), (405, 201190), (450, 181071), (465, 175230), (495, 164610), (531, 153450), (550, 148149), (558, 146025), (590, 138105), (594, 137175), (649, 125550), (675, 120714), (682, 119475), (775, 105138), (810, 100595), (825, 98766), (837, 97350), (885, 92070), (891, 91450), (930, 87615), (990, 82305), (1023, 79650), (1062, 76725), (1298, 62775), (1350, 60357), (1395, 58410), (1475, 55242), (1485, 54870), (1550, 52569), (1593, 51150), (1650, 49383), (1674, 48675), (1705, 47790), (1770, 46035), (1782, 45725), (1829, 44550), (1947, 41850), (2025, 40238), (2046, 39825), (2325, 35046), (2475, 32922), (2511, 32450), (2655, 30690), (2790, 29205), (2950, 27621), (2970, 27435), (3069, 26550), (3186, 25575), (3245, 25110), (3410, 23895), (3658, 22275), (3894, 20925), (4050, 20119), (4185, 19470), (4425, 18414), (4455, 18290), (4650, 17523), (4779, 17050), (4950, 16461), (5022, 16225), (5115, 15930), (5310, 15345), (5487, 14850), (5841, 13950), (6138, 13275), (6490, 12555), (6975, 11682), (7425, 10974), (7965, 10230), (8370, 9735), (8525, 9558), (8850, 9207), (8910, 9145)]