445729280

素因数分解:

$2^9\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1109}}^1$

素因数の和:1289

約数の個数: 80

約数和(自身を含む): 1076482440

約数和(自身を除く): 630753160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 512, 628, 640, 785, 1109, 1256, 1280, 1570, 2218, 2512, 2560, 3140, 4436, 5024, 5545, 6280, 8872, 10048, 11090, 12560, 17744, 20096, 22180, 25120, 35488, 40192, 44360, 50240, 70976, 80384, 88720, 100480, 141952, 174113, 177440, 200960, 283904, 348226, 354880, 401920, 567808, 696452, 709760, 870565, 1392904, 1419520, 1741130, 2785808, 2839040, 3482260, 5571616, 6964520, 11143232, 13929040, 22286464, 27858080, 44572928, 55716160, 89145856, 111432320, 222864640, 445729280]

約数ペア:

[(1, 445729280), (2, 222864640), (4, 111432320), (5, 89145856), (8, 55716160), (10, 44572928), (16, 27858080), (20, 22286464), (32, 13929040), (40, 11143232), (64, 6964520), (80, 5571616), (128, 3482260), (157, 2839040), (160, 2785808), (256, 1741130), (314, 1419520), (320, 1392904), (512, 870565), (628, 709760), (640, 696452), (785, 567808), (1109, 401920), (1256, 354880), (1280, 348226), (1570, 283904), (2218, 200960), (2512, 177440), (2560, 174113), (3140, 141952), (4436, 100480), (5024, 88720), (5545, 80384), (6280, 70976), (8872, 50240), (10048, 44360), (11090, 40192), (12560, 35488), (17744, 25120), (20096, 22180)]