281421440

素因数分解:

$2^7\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6563}}^1$

素因数の和:6649

約数の個数: 64

約数和(自身を含む): 682918560

約数和(自身を除く): 401497120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 268, 320, 335, 536, 640, 670, 1072, 1340, 2144, 2680, 4288, 5360, 6563, 8576, 10720, 13126, 21440, 26252, 32815, 42880, 52504, 65630, 105008, 131260, 210016, 262520, 420032, 439721, 525040, 840064, 879442, 1050080, 1758884, 2100160, 2198605, 3517768, 4200320, 4397210, 7035536, 8794420, 14071072, 17588840, 28142144, 35177680, 56284288, 70355360, 140710720, 281421440]

約数ペア:

[(1, 281421440), (2, 140710720), (4, 70355360), (5, 56284288), (8, 35177680), (10, 28142144), (16, 17588840), (20, 14071072), (32, 8794420), (40, 7035536), (64, 4397210), (67, 4200320), (80, 3517768), (128, 2198605), (134, 2100160), (160, 1758884), (268, 1050080), (320, 879442), (335, 840064), (536, 525040), (640, 439721), (670, 420032), (1072, 262520), (1340, 210016), (2144, 131260), (2680, 105008), (4288, 65630), (5360, 52504), (6563, 42880), (8576, 32815), (10720, 26252), (13126, 21440)]