57681145

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2232

約数の個数: 16

約数和(自身を含む): 72000000

約数和(自身を除く): 14318855

約数列:

[1, 5, 29, 145, 199, 995, 1999, 5771, 9995, 28855, 57971, 289855, 397801, 1989005, 11536229, 57681145]

約数ペア:

[(1, 57681145), (5, 11536229), (29, 1989005), (145, 397801), (199, 289855), (995, 57971), (1999, 28855), (5771, 9995)]