20208990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8527}}^1$

素因数の和:8616

約数の個数: 32

約数和(自身を含む): 49121280

約数和(自身を除く): 28912290

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 79, 158, 237, 395, 474, 790, 1185, 2370, 8527, 17054, 25581, 42635, 51162, 85270, 127905, 255810, 673633, 1347266, 2020899, 3368165, 4041798, 6736330, 10104495, 20208990]

約数ペア:

[(1, 20208990), (2, 10104495), (3, 6736330), (5, 4041798), (6, 3368165), (10, 2020899), (15, 1347266), (30, 673633), (79, 255810), (158, 127905), (237, 85270), (395, 51162), (474, 42635), (790, 25581), (1185, 17054), (2370, 8527)]