20003520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 112

約数和(自身を含む): 64666368

約数和(自身を除く): 44662848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 67, 80, 96, 120, 134, 160, 192, 201, 240, 268, 311, 320, 335, 402, 480, 536, 622, 670, 804, 933, 960, 1005, 1072, 1244, 1340, 1555, 1608, 1866, 2010, 2144, 2488, 2680, 3110, 3216, 3732, 4020, 4288, 4665, 4976, 5360, 6220, 6432, 7464, 8040, 9330, 9952, 10720, 12440, 12864, 14928, 16080, 18660, 19904, 20837, 21440, 24880, 29856, 32160, 37320, 41674, 49760, 59712, 62511, 64320, 74640, 83348, 99520, 104185, 125022, 149280, 166696, 208370, 250044, 298560, 312555, 333392, 416740, 500088, 625110, 666784, 833480, 1000176, 1250220, 1333568, 1666960, 2000352, 2500440, 3333920, 4000704, 5000880, 6667840, 10001760, 20003520]

約数ペア:

[(1, 20003520), (2, 10001760), (3, 6667840), (4, 5000880), (5, 4000704), (6, 3333920), (8, 2500440), (10, 2000352), (12, 1666960), (15, 1333568), (16, 1250220), (20, 1000176), (24, 833480), (30, 666784), (32, 625110), (40, 500088), (48, 416740), (60, 333392), (64, 312555), (67, 298560), (80, 250044), (96, 208370), (120, 166696), (134, 149280), (160, 125022), (192, 104185), (201, 99520), (240, 83348), (268, 74640), (311, 64320), (320, 62511), (335, 59712), (402, 49760), (480, 41674), (536, 37320), (622, 32160), (670, 29856), (804, 24880), (933, 21440), (960, 20837), (1005, 19904), (1072, 18660), (1244, 16080), (1340, 14928), (1555, 12864), (1608, 12440), (1866, 10720), (2010, 9952), (2144, 9330), (2488, 8040), (2680, 7464), (3110, 6432), (3216, 6220), (3732, 5360), (4020, 4976), (4288, 4665)]