81471056

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{19813}}^1$

素因数の和:20078

約数の個数: 20

約数和(自身を含む): 158472372

約数和(自身を除く): 77001316

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 19813, 39626, 79252, 158504, 317008, 5091941, 10183882, 20367764, 40735528, 81471056]

約数ペア:

[(1, 81471056), (2, 40735528), (4, 20367764), (8, 10183882), (16, 5091941), (257, 317008), (514, 158504), (1028, 79252), (2056, 39626), (4112, 19813)]