257291520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67003}}^1$

素因数の和:67027

約数の個数: 72

約数和(自身を含む): 821737056

約数和(自身を除く): 564445536

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 67003, 134006, 201009, 268012, 335015, 402018, 536024, 670030, 804036, 1005045, 1072048, 1340060, 1608072, 2010090, 2144096, 2680120, 3216144, 4020180, 4288192, 5360240, 6432288, 8040360, 8576384, 10720480, 12864576, 16080720, 17152768, 21440960, 25729152, 32161440, 42881920, 51458304, 64322880, 85763840, 128645760, 257291520]

約数ペア:

[(1, 257291520), (2, 128645760), (3, 85763840), (4, 64322880), (5, 51458304), (6, 42881920), (8, 32161440), (10, 25729152), (12, 21440960), (15, 17152768), (16, 16080720), (20, 12864576), (24, 10720480), (30, 8576384), (32, 8040360), (40, 6432288), (48, 5360240), (60, 4288192), (64, 4020180), (80, 3216144), (96, 2680120), (120, 2144096), (128, 2010090), (160, 1608072), (192, 1340060), (240, 1072048), (256, 1005045), (320, 804036), (384, 670030), (480, 536024), (640, 402018), (768, 335015), (960, 268012), (1280, 201009), (1920, 134006), (3840, 67003)]