81184912

素因数分解:

$2^4\times {\mathrm{397}}^1\times {\mathrm{12781}}^1$

素因数の和:13186

約数の個数: 20

約数和(自身を含む): 157704316

約数和(自身を除く): 76519404

約数列:

[1, 2, 4, 8, 16, 397, 794, 1588, 3176, 6352, 12781, 25562, 51124, 102248, 204496, 5074057, 10148114, 20296228, 40592456, 81184912]

約数ペア:

[(1, 81184912), (2, 40592456), (4, 20296228), (8, 10148114), (16, 5074057), (397, 204496), (794, 102248), (1588, 51124), (3176, 25562), (6352, 12781)]