81990434

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{827}}^1\times {\mathrm{2609}}^1$

素因数の和:3457

約数の個数: 16

約数和(自身を含む): 129664800

約数和(自身を除く): 47674366

約数列:

[1, 2, 19, 38, 827, 1654, 2609, 5218, 15713, 31426, 49571, 99142, 2157643, 4315286, 40995217, 81990434]

約数ペア:

[(1, 81990434), (2, 40995217), (19, 4315286), (38, 2157643), (827, 99142), (1654, 49571), (2609, 31426), (5218, 15713)]