80591644

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20707}}^1$

素因数の和:20857

約数の個数: 24

約数和(自身を含む): 162350720

約数和(自身を除く): 81759076

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20707, 41414, 82828, 144949, 289898, 579796, 2878273, 5756546, 11513092, 20147911, 40295822, 80591644]

約数ペア:

[(1, 80591644), (2, 40295822), (4, 20147911), (7, 11513092), (14, 5756546), (28, 2878273), (139, 579796), (278, 289898), (556, 144949), (973, 82828), (1946, 41414), (3892, 20707)]