19442540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{74779}}^1$

素因数の和:74801

約数の個数: 24

約数和(自身を含む): 43970640

約数和(自身を除く): 24528100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 74779, 149558, 299116, 373895, 747790, 972127, 1495580, 1944254, 3888508, 4860635, 9721270, 19442540]

約数ペア:

[(1, 19442540), (2, 9721270), (4, 4860635), (5, 3888508), (10, 1944254), (13, 1495580), (20, 972127), (26, 747790), (52, 373895), (65, 299116), (130, 149558), (260, 74779)]