20166447740

素因数分解:

$2^2\times 5^1\times {\mathrm{2543}}^1\times {\mathrm{396509}}^1$

素因数の和:399061

約数の個数: 24

約数和(自身を含む): 42366300480

約数和(自身を除く): 22199852740

約数列:

[1, 2, 4, 5, 10, 20, 2543, 5086, 10172, 12715, 25430, 50860, 396509, 793018, 1586036, 1982545, 3965090, 7930180, 1008322387, 2016644774, 4033289548, 5041611935, 10083223870, 20166447740]

約数ペア:

[(1, 20166447740), (2, 10083223870), (4, 5041611935), (5, 4033289548), (10, 2016644774), (20, 1008322387), (2543, 7930180), (5086, 3965090), (10172, 1982545), (12715, 1586036), (25430, 793018), (50860, 396509)]