251984640

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:546

約数の個数: 144

約数和(自身を含む): 811190016

約数和(自身を除く): 559205376

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, 211, 240, 256, 311, 320, 384, 422, 480, 622, 633, 640, 768, 844, 933, 960, 1055, 1244, 1266, 1280, 1555, 1688, 1866, 1920, 2110, 2488, 2532, 3110, 3165, 3376, 3732, 3840, 4220, 4665, 4976, 5064, 6220, 6330, 6752, 7464, 8440, 9330, 9952, 10128, 12440, 12660, 13504, 14928, 16880, 18660, 19904, 20256, 24880, 25320, 27008, 29856, 33760, 37320, 39808, 40512, 49760, 50640, 54016, 59712, 65621, 67520, 74640, 79616, 81024, 99520, 101280, 119424, 131242, 135040, 149280, 162048, 196863, 199040, 202560, 238848, 262484, 270080, 298560, 328105, 393726, 398080, 405120, 524968, 597120, 656210, 787452, 810240, 984315, 1049936, 1194240, 1312420, 1574904, 1968630, 2099872, 2624840, 3149808, 3937260, 4199744, 5249680, 6299616, 7874520, 8399488, 10499360, 12599232, 15749040, 16798976, 20998720, 25198464, 31498080, 41997440, 50396928, 62996160, 83994880, 125992320, 251984640]

約数ペア:

[(1, 251984640), (2, 125992320), (3, 83994880), (4, 62996160), (5, 50396928), (6, 41997440), (8, 31498080), (10, 25198464), (12, 20998720), (15, 16798976), (16, 15749040), (20, 12599232), (24, 10499360), (30, 8399488), (32, 7874520), (40, 6299616), (48, 5249680), (60, 4199744), (64, 3937260), (80, 3149808), (96, 2624840), (120, 2099872), (128, 1968630), (160, 1574904), (192, 1312420), (211, 1194240), (240, 1049936), (256, 984315), (311, 810240), (320, 787452), (384, 656210), (422, 597120), (480, 524968), (622, 405120), (633, 398080), (640, 393726), (768, 328105), (844, 298560), (933, 270080), (960, 262484), (1055, 238848), (1244, 202560), (1266, 199040), (1280, 196863), (1555, 162048), (1688, 149280), (1866, 135040), (1920, 131242), (2110, 119424), (2488, 101280), (2532, 99520), (3110, 81024), (3165, 79616), (3376, 74640), (3732, 67520), (3840, 65621), (4220, 59712), (4665, 54016), (4976, 50640), (5064, 49760), (6220, 40512), (6330, 39808), (6752, 37320), (7464, 33760), (8440, 29856), (9330, 27008), (9952, 25320), (10128, 24880), (12440, 20256), (12660, 19904), (13504, 18660), (14928, 16880)]