864640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{193}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 2374560

約数和(自身を除く): 1509920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 193, 224, 280, 320, 386, 448, 560, 640, 772, 896, 965, 1120, 1351, 1544, 1930, 2240, 2702, 3088, 3860, 4480, 5404, 6176, 6755, 7720, 10808, 12352, 13510, 15440, 21616, 24704, 27020, 30880, 43232, 54040, 61760, 86464, 108080, 123520, 172928, 216160, 432320, 864640]

約数ペア:

[(1, 864640), (2, 432320), (4, 216160), (5, 172928), (7, 123520), (8, 108080), (10, 86464), (14, 61760), (16, 54040), (20, 43232), (28, 30880), (32, 27020), (35, 24704), (40, 21616), (56, 15440), (64, 13510), (70, 12352), (80, 10808), (112, 7720), (128, 6755), (140, 6176), (160, 5404), (193, 4480), (224, 3860), (280, 3088), (320, 2702), (386, 2240), (448, 1930), (560, 1544), (640, 1351), (772, 1120), (896, 965)]