28320045

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8543}}^1$

素因数の和:8581

約数の個数: 32

約数和(自身を含む): 51674112

約数和(自身を除く): 23354067

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 8543, 25629, 42715, 111059, 128145, 145231, 333177, 435693, 555295, 726155, 1665885, 1888003, 2178465, 5664009, 9440015, 28320045]

約数ペア:

[(1, 28320045), (3, 9440015), (5, 5664009), (13, 2178465), (15, 1888003), (17, 1665885), (39, 726155), (51, 555295), (65, 435693), (85, 333177), (195, 145231), (221, 128145), (255, 111059), (663, 42715), (1105, 25629), (3315, 8543)]