21712320

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{359}}^1$

素因数の和:392

約数の個数: 224

約数和(自身を含む): 87782400

約数和(自身を除く): 66070080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 270, 280, 288, 315, 320, 336, 359, 360, 378, 420, 432, 448, 480, 504, 540, 560, 576, 630, 672, 718, 720, 756, 840, 864, 945, 960, 1008, 1077, 1080, 1120, 1260, 1344, 1436, 1440, 1512, 1680, 1728, 1795, 1890, 2016, 2154, 2160, 2240, 2513, 2520, 2872, 2880, 3024, 3231, 3360, 3590, 3780, 4032, 4308, 4320, 5026, 5040, 5385, 5744, 6048, 6462, 6720, 7180, 7539, 7560, 8616, 8640, 9693, 10052, 10080, 10770, 11488, 12096, 12565, 12924, 14360, 15078, 15120, 16155, 17232, 19386, 20104, 20160, 21540, 22617, 22976, 25130, 25848, 28720, 30156, 30240, 32310, 34464, 37695, 38772, 40208, 43080, 45234, 48465, 50260, 51696, 57440, 60312, 60480, 64620, 67851, 68928, 75390, 77544, 80416, 86160, 90468, 96930, 100520, 103392, 113085, 114880, 120624, 129240, 135702, 150780, 155088, 160832, 172320, 180936, 193860, 201040, 206784, 226170, 241248, 258480, 271404, 301560, 310176, 339255, 344640, 361872, 387720, 402080, 452340, 482496, 516960, 542808, 603120, 620352, 678510, 723744, 775440, 804160, 904680, 1033920, 1085616, 1206240, 1357020, 1447488, 1550880, 1809360, 2171232, 2412480, 2714040, 3101760, 3618720, 4342464, 5428080, 7237440, 10856160, 21712320]

約数ペア:

[(1, 21712320), (2, 10856160), (3, 7237440), (4, 5428080), (5, 4342464), (6, 3618720), (7, 3101760), (8, 2714040), (9, 2412480), (10, 2171232), (12, 1809360), (14, 1550880), (15, 1447488), (16, 1357020), (18, 1206240), (20, 1085616), (21, 1033920), (24, 904680), (27, 804160), (28, 775440), (30, 723744), (32, 678510), (35, 620352), (36, 603120), (40, 542808), (42, 516960), (45, 482496), (48, 452340), (54, 402080), (56, 387720), (60, 361872), (63, 344640), (64, 339255), (70, 310176), (72, 301560), (80, 271404), (84, 258480), (90, 241248), (96, 226170), (105, 206784), (108, 201040), (112, 193860), (120, 180936), (126, 172320), (135, 160832), (140, 155088), (144, 150780), (160, 135702), (168, 129240), (180, 120624), (189, 114880), (192, 113085), (210, 103392), (216, 100520), (224, 96930), (240, 90468), (252, 86160), (270, 80416), (280, 77544), (288, 75390), (315, 68928), (320, 67851), (336, 64620), (359, 60480), (360, 60312), (378, 57440), (420, 51696), (432, 50260), (448, 48465), (480, 45234), (504, 43080), (540, 40208), (560, 38772), (576, 37695), (630, 34464), (672, 32310), (718, 30240), (720, 30156), (756, 28720), (840, 25848), (864, 25130), (945, 22976), (960, 22617), (1008, 21540), (1077, 20160), (1080, 20104), (1120, 19386), (1260, 17232), (1344, 16155), (1436, 15120), (1440, 15078), (1512, 14360), (1680, 12924), (1728, 12565), (1795, 12096), (1890, 11488), (2016, 10770), (2154, 10080), (2160, 10052), (2240, 9693), (2513, 8640), (2520, 8616), (2872, 7560), (2880, 7539), (3024, 7180), (3231, 6720), (3360, 6462), (3590, 6048), (3780, 5744), (4032, 5385), (4308, 5040), (4320, 5026)]