331264640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{73943}}^1$

素因数の和:73969

約数の個数: 64

約数和(自身を含む): 905074560

約数和(自身を除く): 573809920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 73943, 147886, 295772, 369715, 517601, 591544, 739430, 1035202, 1183088, 1478860, 2070404, 2366176, 2588005, 2957720, 4140808, 4732352, 5176010, 5915440, 8281616, 9464704, 10352020, 11830880, 16563232, 20704040, 23661760, 33126464, 41408080, 47323520, 66252928, 82816160, 165632320, 331264640]

約数ペア:

[(1, 331264640), (2, 165632320), (4, 82816160), (5, 66252928), (7, 47323520), (8, 41408080), (10, 33126464), (14, 23661760), (16, 20704040), (20, 16563232), (28, 11830880), (32, 10352020), (35, 9464704), (40, 8281616), (56, 5915440), (64, 5176010), (70, 4732352), (80, 4140808), (112, 2957720), (128, 2588005), (140, 2366176), (160, 2070404), (224, 1478860), (280, 1183088), (320, 1035202), (448, 739430), (560, 591544), (640, 517601), (896, 369715), (1120, 295772), (2240, 147886), (4480, 73943)]