8245760

素因数分解:

$2^9\times 5^1\times {\mathrm{3221}}^1$

素因数の和:3244

約数の個数: 40

約数和(自身を含む): 19776636

約数和(自身を除く): 11530876

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 3221, 6442, 12884, 16105, 25768, 32210, 51536, 64420, 103072, 128840, 206144, 257680, 412288, 515360, 824576, 1030720, 1649152, 2061440, 4122880, 8245760]

約数ペア:

[(1, 8245760), (2, 4122880), (4, 2061440), (5, 1649152), (8, 1030720), (10, 824576), (16, 515360), (20, 412288), (32, 257680), (40, 206144), (64, 128840), (80, 103072), (128, 64420), (160, 51536), (256, 32210), (320, 25768), (512, 16105), (640, 12884), (1280, 6442), (2560, 3221)]