81465518

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{709}}^1\times {\mathrm{787}}^1$

素因数の和:1571

約数の個数: 16

約数和(自身を含む): 124204560

約数和(自身を除く): 42739042

約数列:

[1, 2, 73, 146, 709, 787, 1418, 1574, 51757, 57451, 103514, 114902, 557983, 1115966, 40732759, 81465518]

約数ペア:

[(1, 81465518), (2, 40732759), (73, 1115966), (146, 557983), (709, 114902), (787, 103514), (1418, 57451), (1574, 51757)]