20678400

素因数分解:

$2^8\times 3^2\times 5^2\times {\mathrm{359}}^1$

素因数の和:391

約数の個数: 162

約数和(自身を含む): 74135880

約数和(自身を除く): 53457480

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, 128, 144, 150, 160, 180, 192, 200, 225, 240, 256, 288, 300, 320, 359, 360, 384, 400, 450, 480, 576, 600, 640, 718, 720, 768, 800, 900, 960, 1077, 1152, 1200, 1280, 1436, 1440, 1600, 1795, 1800, 1920, 2154, 2304, 2400, 2872, 2880, 3200, 3231, 3590, 3600, 3840, 4308, 4800, 5385, 5744, 5760, 6400, 6462, 7180, 7200, 8616, 8975, 9600, 10770, 11488, 11520, 12924, 14360, 14400, 16155, 17232, 17950, 19200, 21540, 22976, 25848, 26925, 28720, 28800, 32310, 34464, 35900, 43080, 45952, 51696, 53850, 57440, 57600, 64620, 68928, 71800, 80775, 86160, 91904, 103392, 107700, 114880, 129240, 137856, 143600, 161550, 172320, 206784, 215400, 229760, 258480, 275712, 287200, 323100, 344640, 413568, 430800, 459520, 516960, 574400, 646200, 689280, 827136, 861600, 1033920, 1148800, 1292400, 1378560, 1723200, 2067840, 2297600, 2584800, 3446400, 4135680, 5169600, 6892800, 10339200, 20678400]

約数ペア:

[(1, 20678400), (2, 10339200), (3, 6892800), (4, 5169600), (5, 4135680), (6, 3446400), (8, 2584800), (9, 2297600), (10, 2067840), (12, 1723200), (15, 1378560), (16, 1292400), (18, 1148800), (20, 1033920), (24, 861600), (25, 827136), (30, 689280), (32, 646200), (36, 574400), (40, 516960), (45, 459520), (48, 430800), (50, 413568), (60, 344640), (64, 323100), (72, 287200), (75, 275712), (80, 258480), (90, 229760), (96, 215400), (100, 206784), (120, 172320), (128, 161550), (144, 143600), (150, 137856), (160, 129240), (180, 114880), (192, 107700), (200, 103392), (225, 91904), (240, 86160), (256, 80775), (288, 71800), (300, 68928), (320, 64620), (359, 57600), (360, 57440), (384, 53850), (400, 51696), (450, 45952), (480, 43080), (576, 35900), (600, 34464), (640, 32310), (718, 28800), (720, 28720), (768, 26925), (800, 25848), (900, 22976), (960, 21540), (1077, 19200), (1152, 17950), (1200, 17232), (1280, 16155), (1436, 14400), (1440, 14360), (1600, 12924), (1795, 11520), (1800, 11488), (1920, 10770), (2154, 9600), (2304, 8975), (2400, 8616), (2872, 7200), (2880, 7180), (3200, 6462), (3231, 6400), (3590, 5760), (3600, 5744), (3840, 5385), (4308, 4800)]