81005008

素因数分解:

$2^4\times 7^1\times {\mathrm{723259}}^1$

素因数の和:723274

約数の個数: 20

約数和(自身を含む): 179368480

約数和(自身を除く): 98363472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 723259, 1446518, 2893036, 5062813, 5786072, 10125626, 11572144, 20251252, 40502504, 81005008]

約数ペア:

[(1, 81005008), (2, 40502504), (4, 20251252), (7, 11572144), (8, 10125626), (14, 5786072), (16, 5062813), (28, 2893036), (56, 1446518), (112, 723259)]