261855

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2$

素因数の和:68

約数の個数: 36

約数和(自身を含む): 517608

約数和(自身を除く): 255753

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 529, 759, 1035, 1265, 1587, 2277, 2645, 3795, 4761, 5819, 7935, 11385, 17457, 23805, 29095, 52371, 87285, 261855]

約数ペア:

[(1, 261855), (3, 87285), (5, 52371), (9, 29095), (11, 23805), (15, 17457), (23, 11385), (33, 7935), (45, 5819), (55, 4761), (69, 3795), (99, 2645), (115, 2277), (165, 1587), (207, 1265), (253, 1035), (345, 759), (495, 529)]