20904000

素因数分解:

$2^6\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:110

約数の個数: 224

約数和(自身を含む): 75444096

約数和(自身を除く): 54540096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 25, 26, 30, 32, 39, 40, 48, 50, 52, 60, 64, 65, 67, 75, 78, 80, 96, 100, 104, 120, 125, 130, 134, 150, 156, 160, 192, 195, 200, 201, 208, 240, 250, 260, 268, 300, 312, 320, 325, 335, 375, 390, 400, 402, 416, 480, 500, 520, 536, 600, 624, 650, 670, 750, 780, 800, 804, 832, 871, 960, 975, 1000, 1005, 1040, 1072, 1200, 1248, 1300, 1340, 1500, 1560, 1600, 1608, 1625, 1675, 1742, 1950, 2000, 2010, 2080, 2144, 2400, 2496, 2600, 2613, 2680, 3000, 3120, 3216, 3250, 3350, 3484, 3900, 4000, 4020, 4160, 4288, 4355, 4800, 4875, 5025, 5200, 5226, 5360, 6000, 6240, 6432, 6500, 6700, 6968, 7800, 8000, 8040, 8375, 8710, 9750, 10050, 10400, 10452, 10720, 12000, 12480, 12864, 13000, 13065, 13400, 13936, 15600, 16080, 16750, 17420, 19500, 20100, 20800, 20904, 21440, 21775, 24000, 25125, 26000, 26130, 26800, 27872, 31200, 32160, 33500, 34840, 39000, 40200, 41808, 43550, 50250, 52000, 52260, 53600, 55744, 62400, 64320, 65325, 67000, 69680, 78000, 80400, 83616, 87100, 100500, 104000, 104520, 107200, 108875, 130650, 134000, 139360, 156000, 160800, 167232, 174200, 201000, 209040, 217750, 261300, 268000, 278720, 312000, 321600, 326625, 348400, 402000, 418080, 435500, 522600, 536000, 653250, 696800, 804000, 836160, 871000, 1045200, 1306500, 1393600, 1608000, 1742000, 2090400, 2613000, 3484000, 4180800, 5226000, 6968000, 10452000, 20904000]

約数ペア:

[(1, 20904000), (2, 10452000), (3, 6968000), (4, 5226000), (5, 4180800), (6, 3484000), (8, 2613000), (10, 2090400), (12, 1742000), (13, 1608000), (15, 1393600), (16, 1306500), (20, 1045200), (24, 871000), (25, 836160), (26, 804000), (30, 696800), (32, 653250), (39, 536000), (40, 522600), (48, 435500), (50, 418080), (52, 402000), (60, 348400), (64, 326625), (65, 321600), (67, 312000), (75, 278720), (78, 268000), (80, 261300), (96, 217750), (100, 209040), (104, 201000), (120, 174200), (125, 167232), (130, 160800), (134, 156000), (150, 139360), (156, 134000), (160, 130650), (192, 108875), (195, 107200), (200, 104520), (201, 104000), (208, 100500), (240, 87100), (250, 83616), (260, 80400), (268, 78000), (300, 69680), (312, 67000), (320, 65325), (325, 64320), (335, 62400), (375, 55744), (390, 53600), (400, 52260), (402, 52000), (416, 50250), (480, 43550), (500, 41808), (520, 40200), (536, 39000), (600, 34840), (624, 33500), (650, 32160), (670, 31200), (750, 27872), (780, 26800), (800, 26130), (804, 26000), (832, 25125), (871, 24000), (960, 21775), (975, 21440), (1000, 20904), (1005, 20800), (1040, 20100), (1072, 19500), (1200, 17420), (1248, 16750), (1300, 16080), (1340, 15600), (1500, 13936), (1560, 13400), (1600, 13065), (1608, 13000), (1625, 12864), (1675, 12480), (1742, 12000), (1950, 10720), (2000, 10452), (2010, 10400), (2080, 10050), (2144, 9750), (2400, 8710), (2496, 8375), (2600, 8040), (2613, 8000), (2680, 7800), (3000, 6968), (3120, 6700), (3216, 6500), (3250, 6432), (3350, 6240), (3484, 6000), (3900, 5360), (4000, 5226), (4020, 5200), (4160, 5025), (4288, 4875), (4355, 4800)]