285729280

素因数分解:

$2^9\times 5^1\times {\mathrm{239}}^1\times {\mathrm{467}}^1$

素因数の和:729

約数の個数: 80

約数和(自身を含む): 689420160

約数和(自身を除く): 403690880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 239, 256, 320, 467, 478, 512, 640, 934, 956, 1195, 1280, 1868, 1912, 2335, 2390, 2560, 3736, 3824, 4670, 4780, 7472, 7648, 9340, 9560, 14944, 15296, 18680, 19120, 29888, 30592, 37360, 38240, 59776, 61184, 74720, 76480, 111613, 119552, 122368, 149440, 152960, 223226, 239104, 298880, 305920, 446452, 558065, 597760, 611840, 892904, 1116130, 1195520, 1785808, 2232260, 3571616, 4464520, 7143232, 8929040, 14286464, 17858080, 28572928, 35716160, 57145856, 71432320, 142864640, 285729280]

約数ペア:

[(1, 285729280), (2, 142864640), (4, 71432320), (5, 57145856), (8, 35716160), (10, 28572928), (16, 17858080), (20, 14286464), (32, 8929040), (40, 7143232), (64, 4464520), (80, 3571616), (128, 2232260), (160, 1785808), (239, 1195520), (256, 1116130), (320, 892904), (467, 611840), (478, 597760), (512, 558065), (640, 446452), (934, 305920), (956, 298880), (1195, 239104), (1280, 223226), (1868, 152960), (1912, 149440), (2335, 122368), (2390, 119552), (2560, 111613), (3736, 76480), (3824, 74720), (4670, 61184), (4780, 59776), (7472, 38240), (7648, 37360), (9340, 30592), (9560, 29888), (14944, 19120), (15296, 18680)]