78445240

素因数分解:

$2^3\times 5^1\times {\mathrm{1961131}}^1$

素因数の和:1961142

約数の個数: 16

約数和(自身を含む): 176501880

約数和(自身を除く): 98056640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1961131, 3922262, 7844524, 9805655, 15689048, 19611310, 39222620, 78445240]

約数ペア:

[(1, 78445240), (2, 39222620), (4, 19611310), (5, 15689048), (8, 9805655), (10, 7844524), (20, 3922262), (40, 1961131)]