131239216

素因数分解:

$2^4\times {\mathrm{809}}^1\times {\mathrm{10139}}^1$

素因数の和:10956

約数の個数: 20

約数和(自身を含む): 254615400

約数和(自身を除く): 123376184

約数列:

[1, 2, 4, 8, 16, 809, 1618, 3236, 6472, 10139, 12944, 20278, 40556, 81112, 162224, 8202451, 16404902, 32809804, 65619608, 131239216]

約数ペア:

[(1, 131239216), (2, 65619608), (4, 32809804), (8, 16404902), (16, 8202451), (809, 162224), (1618, 81112), (3236, 40556), (6472, 20278), (10139, 12944)]