81143728912

素因数分解:

$2^4\times {\mathrm{31657}}^1\times {\mathrm{160201}}^1$

素因数の和:191866

約数の個数: 20

約数和(自身を含む): 157221922396

約数和(自身を除く): 76078193484

約数列:

[1, 2, 4, 8, 16, 31657, 63314, 126628, 160201, 253256, 320402, 506512, 640804, 1281608, 2563216, 5071483057, 10142966114, 20285932228, 40571864456, 81143728912]

約数ペア:

[(1, 81143728912), (2, 40571864456), (4, 20285932228), (8, 10142966114), (16, 5071483057), (31657, 2563216), (63314, 1281608), (126628, 640804), (160201, 506512), (253256, 320402)]