20396350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31379}}^1$

素因数の和:31404

約数の個数: 24

約数和(自身を含む): 40856760

約数和(自身を除く): 20460410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 31379, 62758, 156895, 313790, 407927, 784475, 815854, 1568950, 2039635, 4079270, 10198175, 20396350]

約数ペア:

[(1, 20396350), (2, 10198175), (5, 4079270), (10, 2039635), (13, 1568950), (25, 815854), (26, 784475), (50, 407927), (65, 313790), (130, 156895), (325, 62758), (650, 31379)]