81195568

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{64237}}^1$

素因数の和:64324

約数の個数: 20

約数和(自身を含む): 159310240

約数和(自身を除く): 78114672

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 64237, 128474, 256948, 513896, 1027792, 5074723, 10149446, 20298892, 40597784, 81195568]

約数ペア:

[(1, 81195568), (2, 40597784), (4, 20298892), (8, 10149446), (16, 5074723), (79, 1027792), (158, 513896), (316, 256948), (632, 128474), (1264, 64237)]