21548800

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 216

約数和(自身を含む): 67419296

約数和(自身を除く): 45870496

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 37, 40, 50, 52, 56, 64, 65, 70, 74, 80, 91, 100, 104, 112, 128, 130, 140, 148, 160, 175, 182, 185, 200, 208, 224, 256, 259, 260, 280, 296, 320, 325, 350, 364, 370, 400, 416, 448, 455, 481, 518, 520, 560, 592, 640, 650, 700, 728, 740, 800, 832, 896, 910, 925, 962, 1036, 1040, 1120, 1184, 1280, 1295, 1300, 1400, 1456, 1480, 1600, 1664, 1792, 1820, 1850, 1924, 2072, 2080, 2240, 2275, 2368, 2405, 2590, 2600, 2800, 2912, 2960, 3200, 3328, 3367, 3640, 3700, 3848, 4144, 4160, 4480, 4550, 4736, 4810, 5180, 5200, 5600, 5824, 5920, 6400, 6475, 6734, 7280, 7400, 7696, 8288, 8320, 8960, 9100, 9472, 9620, 10360, 10400, 11200, 11648, 11840, 12025, 12950, 13468, 14560, 14800, 15392, 16576, 16640, 16835, 18200, 19240, 20720, 20800, 22400, 23296, 23680, 24050, 25900, 26936, 29120, 29600, 30784, 33152, 33670, 36400, 38480, 41440, 41600, 44800, 47360, 48100, 51800, 53872, 58240, 59200, 61568, 66304, 67340, 72800, 76960, 82880, 83200, 84175, 96200, 103600, 107744, 116480, 118400, 123136, 134680, 145600, 153920, 165760, 168350, 192400, 207200, 215488, 236800, 269360, 291200, 307840, 331520, 336700, 384800, 414400, 430976, 538720, 582400, 615680, 673400, 769600, 828800, 861952, 1077440, 1346800, 1539200, 1657600, 2154880, 2693600, 3078400, 4309760, 5387200, 10774400, 21548800]

約数ペア:

[(1, 21548800), (2, 10774400), (4, 5387200), (5, 4309760), (7, 3078400), (8, 2693600), (10, 2154880), (13, 1657600), (14, 1539200), (16, 1346800), (20, 1077440), (25, 861952), (26, 828800), (28, 769600), (32, 673400), (35, 615680), (37, 582400), (40, 538720), (50, 430976), (52, 414400), (56, 384800), (64, 336700), (65, 331520), (70, 307840), (74, 291200), (80, 269360), (91, 236800), (100, 215488), (104, 207200), (112, 192400), (128, 168350), (130, 165760), (140, 153920), (148, 145600), (160, 134680), (175, 123136), (182, 118400), (185, 116480), (200, 107744), (208, 103600), (224, 96200), (256, 84175), (259, 83200), (260, 82880), (280, 76960), (296, 72800), (320, 67340), (325, 66304), (350, 61568), (364, 59200), (370, 58240), (400, 53872), (416, 51800), (448, 48100), (455, 47360), (481, 44800), (518, 41600), (520, 41440), (560, 38480), (592, 36400), (640, 33670), (650, 33152), (700, 30784), (728, 29600), (740, 29120), (800, 26936), (832, 25900), (896, 24050), (910, 23680), (925, 23296), (962, 22400), (1036, 20800), (1040, 20720), (1120, 19240), (1184, 18200), (1280, 16835), (1295, 16640), (1300, 16576), (1400, 15392), (1456, 14800), (1480, 14560), (1600, 13468), (1664, 12950), (1792, 12025), (1820, 11840), (1850, 11648), (1924, 11200), (2072, 10400), (2080, 10360), (2240, 9620), (2275, 9472), (2368, 9100), (2405, 8960), (2590, 8320), (2600, 8288), (2800, 7696), (2912, 7400), (2960, 7280), (3200, 6734), (3328, 6475), (3367, 6400), (3640, 5920), (3700, 5824), (3848, 5600), (4144, 5200), (4160, 5180), (4480, 4810), (4550, 4736)]