81638072

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{143729}}^1$

素因数の和:143806

約数の個数: 16

約数和(自身を含む): 155228400

約数和(自身を除く): 73590328

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 143729, 287458, 574916, 1149832, 10204759, 20409518, 40819036, 81638072]

約数ペア:

[(1, 81638072), (2, 40819036), (4, 20409518), (8, 10204759), (71, 1149832), (142, 574916), (284, 287458), (568, 143729)]