3973910

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{991}}^1$

素因数の和:1399

約数の個数: 16

約数和(自身を含む): 7178112

約数和(自身を除く): 3204202

約数列:

[1, 2, 5, 10, 401, 802, 991, 1982, 2005, 4010, 4955, 9910, 397391, 794782, 1986955, 3973910]

約数ペア:

[(1, 3973910), (2, 1986955), (5, 794782), (10, 397391), (401, 9910), (802, 4955), (991, 4010), (1982, 2005)]