20798400

素因数分解:

$2^6\times 3^1\times 5^2\times 7^1\times {\mathrm{619}}^1$

素因数の和:651

約数の個数: 168

約数和(自身を含む): 78110080

約数和(自身を除く): 57311680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 112, 120, 140, 150, 160, 168, 175, 192, 200, 210, 224, 240, 280, 300, 320, 336, 350, 400, 420, 448, 480, 525, 560, 600, 619, 672, 700, 800, 840, 960, 1050, 1120, 1200, 1238, 1344, 1400, 1600, 1680, 1857, 2100, 2240, 2400, 2476, 2800, 3095, 3360, 3714, 4200, 4333, 4800, 4952, 5600, 6190, 6720, 7428, 8400, 8666, 9285, 9904, 11200, 12380, 12999, 14856, 15475, 16800, 17332, 18570, 19808, 21665, 24760, 25998, 29712, 30950, 33600, 34664, 37140, 39616, 43330, 46425, 49520, 51996, 59424, 61900, 64995, 69328, 74280, 86660, 92850, 99040, 103992, 108325, 118848, 123800, 129990, 138656, 148560, 173320, 185700, 198080, 207984, 216650, 247600, 259980, 277312, 297120, 324975, 346640, 371400, 415968, 433300, 495200, 519960, 594240, 649950, 693280, 742800, 831936, 866600, 990400, 1039920, 1299900, 1386560, 1485600, 1733200, 2079840, 2599800, 2971200, 3466400, 4159680, 5199600, 6932800, 10399200, 20798400]

約数ペア:

[(1, 20798400), (2, 10399200), (3, 6932800), (4, 5199600), (5, 4159680), (6, 3466400), (7, 2971200), (8, 2599800), (10, 2079840), (12, 1733200), (14, 1485600), (15, 1386560), (16, 1299900), (20, 1039920), (21, 990400), (24, 866600), (25, 831936), (28, 742800), (30, 693280), (32, 649950), (35, 594240), (40, 519960), (42, 495200), (48, 433300), (50, 415968), (56, 371400), (60, 346640), (64, 324975), (70, 297120), (75, 277312), (80, 259980), (84, 247600), (96, 216650), (100, 207984), (105, 198080), (112, 185700), (120, 173320), (140, 148560), (150, 138656), (160, 129990), (168, 123800), (175, 118848), (192, 108325), (200, 103992), (210, 99040), (224, 92850), (240, 86660), (280, 74280), (300, 69328), (320, 64995), (336, 61900), (350, 59424), (400, 51996), (420, 49520), (448, 46425), (480, 43330), (525, 39616), (560, 37140), (600, 34664), (619, 33600), (672, 30950), (700, 29712), (800, 25998), (840, 24760), (960, 21665), (1050, 19808), (1120, 18570), (1200, 17332), (1238, 16800), (1344, 15475), (1400, 14856), (1600, 12999), (1680, 12380), (1857, 11200), (2100, 9904), (2240, 9285), (2400, 8666), (2476, 8400), (2800, 7428), (3095, 6720), (3360, 6190), (3714, 5600), (4200, 4952), (4333, 4800)]