80947316

素因数分解:

$2^2\times {\mathrm{157}}^2\times {\mathrm{821}}^1$

素因数の和:1139

約数の個数: 18

約数和(自身を含む): 142739478

約数和(自身を除く): 61792162

約数列:

[1, 2, 4, 157, 314, 628, 821, 1642, 3284, 24649, 49298, 98596, 128897, 257794, 515588, 20236829, 40473658, 80947316]

約数ペア:

[(1, 80947316), (2, 40473658), (4, 20236829), (157, 515588), (314, 257794), (628, 128897), (821, 98596), (1642, 49298), (3284, 24649)]