66125540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{254329}}^1$

素因数の和:254351

約数の個数: 24

約数和(自身を含む): 149546040

約数和(自身を除く): 83420500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 254329, 508658, 1017316, 1271645, 2543290, 3306277, 5086580, 6612554, 13225108, 16531385, 33062770, 66125540]

約数ペア:

[(1, 66125540), (2, 33062770), (4, 16531385), (5, 13225108), (10, 6612554), (13, 5086580), (20, 3306277), (26, 2543290), (52, 1271645), (65, 1017316), (130, 508658), (260, 254329)]