57124120

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2221}}^1$

素因数の和:2875

約数の個数: 32

約数和(自身を含む): 128787120

約数和(自身を除く): 71663000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2221, 2572, 3215, 4442, 5144, 6430, 8884, 11105, 12860, 17768, 22210, 25720, 44420, 88840, 1428103, 2856206, 5712412, 7140515, 11424824, 14281030, 28562060, 57124120]

約数ペア:

[(1, 57124120), (2, 28562060), (4, 14281030), (5, 11424824), (8, 7140515), (10, 5712412), (20, 2856206), (40, 1428103), (643, 88840), (1286, 44420), (2221, 25720), (2572, 22210), (3215, 17768), (4442, 12860), (5144, 11105), (6430, 8884)]