18508840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66103}}^1$

素因数の和:66121

約数の個数: 32

約数和(自身を含む): 47594880

約数和(自身を除く): 29086040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66103, 132206, 264412, 330515, 462721, 528824, 661030, 925442, 1322060, 1850884, 2313605, 2644120, 3701768, 4627210, 9254420, 18508840]

約数ペア:

[(1, 18508840), (2, 9254420), (4, 4627210), (5, 3701768), (7, 2644120), (8, 2313605), (10, 1850884), (14, 1322060), (20, 925442), (28, 661030), (35, 528824), (40, 462721), (56, 330515), (70, 264412), (140, 132206), (280, 66103)]