81310552

素因数分解:

$2^3\times {\mathrm{139}}^1\times {\mathrm{73121}}^1$

素因数の和:73266

約数の個数: 16

約数和(自身を含む): 153556200

約数和(自身を除く): 72245648

約数列:

[1, 2, 4, 8, 139, 278, 556, 1112, 73121, 146242, 292484, 584968, 10163819, 20327638, 40655276, 81310552]

約数ペア:

[(1, 81310552), (2, 40655276), (4, 20327638), (8, 10163819), (139, 584968), (278, 292484), (556, 146242), (1112, 73121)]