257280

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{67}}^1$

素因数の和:91

約数の個数: 72

約数和(自身を含む): 833952

約数和(自身を除く): 576672

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, 128, 134, 160, 192, 201, 240, 256, 268, 320, 335, 384, 402, 480, 536, 640, 670, 768, 804, 960, 1005, 1072, 1280, 1340, 1608, 1920, 2010, 2144, 2680, 3216, 3840, 4020, 4288, 5360, 6432, 8040, 8576, 10720, 12864, 16080, 17152, 21440, 25728, 32160, 42880, 51456, 64320, 85760, 128640, 257280]

約数ペア:

[(1, 257280), (2, 128640), (3, 85760), (4, 64320), (5, 51456), (6, 42880), (8, 32160), (10, 25728), (12, 21440), (15, 17152), (16, 16080), (20, 12864), (24, 10720), (30, 8576), (32, 8040), (40, 6432), (48, 5360), (60, 4288), (64, 4020), (67, 3840), (80, 3216), (96, 2680), (120, 2144), (128, 2010), (134, 1920), (160, 1608), (192, 1340), (201, 1280), (240, 1072), (256, 1005), (268, 960), (320, 804), (335, 768), (384, 670), (402, 640), (480, 536)]