78840255

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{404309}}^1$

素因数の和:404330

約数の個数: 16

約数和(自身を含む): 135848160

約数和(自身を除く): 57007905

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 404309, 1212927, 2021545, 5256017, 6064635, 15768051, 26280085, 78840255]

約数ペア:

[(1, 78840255), (3, 26280085), (5, 15768051), (13, 6064635), (15, 5256017), (39, 2021545), (65, 1212927), (195, 404309)]