39978896

素因数分解:

$2^4\times {\mathrm{509}}^1\times {\mathrm{4909}}^1$

素因数の和:5426

約数の個数: 20

約数和(自身を含む): 77627100

約数和(自身を除く): 37648204

約数列:

[1, 2, 4, 8, 16, 509, 1018, 2036, 4072, 4909, 8144, 9818, 19636, 39272, 78544, 2498681, 4997362, 9994724, 19989448, 39978896]

約数ペア:

[(1, 39978896), (2, 19989448), (4, 9994724), (8, 4997362), (16, 2498681), (509, 78544), (1018, 39272), (2036, 19636), (4072, 9818), (4909, 8144)]