81664335

素因数分解:

$3^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3853}}^1$

素因数の和:4024

約数の個数: 32

約数和(自身を含む): 146143680

約数和(自身を除く): 64479345

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 157, 471, 785, 1413, 2355, 3853, 4239, 7065, 11559, 19265, 21195, 34677, 57795, 104031, 173385, 520155, 604921, 1814763, 3024605, 5444289, 9073815, 16332867, 27221445, 81664335]

約数ペア:

[(1, 81664335), (3, 27221445), (5, 16332867), (9, 9073815), (15, 5444289), (27, 3024605), (45, 1814763), (135, 604921), (157, 520155), (471, 173385), (785, 104031), (1413, 57795), (2355, 34677), (3853, 21195), (4239, 19265), (7065, 11559)]