4122880

素因数分解:

$2^8\times 5^1\times {\mathrm{3221}}^1$

素因数の和:3242

約数の個数: 36

約数和(自身を含む): 9878652

約数和(自身を除く): 5755772

約数列:

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

約数ペア:

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