81487856

素因数分解:

$2^4\times {\mathrm{73}}^1\times {\mathrm{69767}}^1$

素因数の和:69848

約数の個数: 20

約数和(自身を含む): 160047792

約数和(自身を除く): 78559936

約数列:

[1, 2, 4, 8, 16, 73, 146, 292, 584, 1168, 69767, 139534, 279068, 558136, 1116272, 5092991, 10185982, 20371964, 40743928, 81487856]

約数ペア:

[(1, 81487856), (2, 40743928), (4, 20371964), (8, 10185982), (16, 5092991), (73, 1116272), (146, 558136), (292, 279068), (584, 139534), (1168, 69767)]