81720000

素因数分解:

$2^6\times 3^2\times 5^4\times {\mathrm{227}}^1$

素因数の和:265

約数の個数: 210

約数和(自身を含む): 293990268

約数和(自身を除く): 212270268

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 72, 75, 80, 90, 96, 100, 120, 125, 144, 150, 160, 180, 192, 200, 225, 227, 240, 250, 288, 300, 320, 360, 375, 400, 450, 454, 480, 500, 576, 600, 625, 681, 720, 750, 800, 900, 908, 960, 1000, 1125, 1135, 1200, 1250, 1362, 1440, 1500, 1600, 1800, 1816, 1875, 2000, 2043, 2250, 2270, 2400, 2500, 2724, 2880, 3000, 3405, 3600, 3632, 3750, 4000, 4086, 4500, 4540, 4800, 5000, 5448, 5625, 5675, 6000, 6810, 7200, 7264, 7500, 8000, 8172, 9000, 9080, 10000, 10215, 10896, 11250, 11350, 12000, 13620, 14400, 14528, 15000, 16344, 17025, 18000, 18160, 20000, 20430, 21792, 22500, 22700, 24000, 27240, 28375, 30000, 32688, 34050, 36000, 36320, 40000, 40860, 43584, 45000, 45400, 51075, 54480, 56750, 60000, 65376, 68100, 72000, 72640, 81720, 85125, 90000, 90800, 102150, 108960, 113500, 120000, 130752, 136200, 141875, 163440, 170250, 180000, 181600, 204300, 217920, 227000, 255375, 272400, 283750, 326880, 340500, 360000, 363200, 408600, 425625, 454000, 510750, 544800, 567500, 653760, 681000, 817200, 851250, 908000, 1021500, 1089600, 1135000, 1276875, 1362000, 1634400, 1702500, 1816000, 2043000, 2270000, 2553750, 2724000, 3268800, 3405000, 4086000, 4540000, 5107500, 5448000, 6810000, 8172000, 9080000, 10215000, 13620000, 16344000, 20430000, 27240000, 40860000, 81720000]

約数ペア:

[(1, 81720000), (2, 40860000), (3, 27240000), (4, 20430000), (5, 16344000), (6, 13620000), (8, 10215000), (9, 9080000), (10, 8172000), (12, 6810000), (15, 5448000), (16, 5107500), (18, 4540000), (20, 4086000), (24, 3405000), (25, 3268800), (30, 2724000), (32, 2553750), (36, 2270000), (40, 2043000), (45, 1816000), (48, 1702500), (50, 1634400), (60, 1362000), (64, 1276875), (72, 1135000), (75, 1089600), (80, 1021500), (90, 908000), (96, 851250), (100, 817200), (120, 681000), (125, 653760), (144, 567500), (150, 544800), (160, 510750), (180, 454000), (192, 425625), (200, 408600), (225, 363200), (227, 360000), (240, 340500), (250, 326880), (288, 283750), (300, 272400), (320, 255375), (360, 227000), (375, 217920), (400, 204300), (450, 181600), (454, 180000), (480, 170250), (500, 163440), (576, 141875), (600, 136200), (625, 130752), (681, 120000), (720, 113500), (750, 108960), (800, 102150), (900, 90800), (908, 90000), (960, 85125), (1000, 81720), (1125, 72640), (1135, 72000), (1200, 68100), (1250, 65376), (1362, 60000), (1440, 56750), (1500, 54480), (1600, 51075), (1800, 45400), (1816, 45000), (1875, 43584), (2000, 40860), (2043, 40000), (2250, 36320), (2270, 36000), (2400, 34050), (2500, 32688), (2724, 30000), (2880, 28375), (3000, 27240), (3405, 24000), (3600, 22700), (3632, 22500), (3750, 21792), (4000, 20430), (4086, 20000), (4500, 18160), (4540, 18000), (4800, 17025), (5000, 16344), (5448, 15000), (5625, 14528), (5675, 14400), (6000, 13620), (6810, 12000), (7200, 11350), (7264, 11250), (7500, 10896), (8000, 10215), (8172, 10000), (9000, 9080)]