81154328

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{541}}^1\times {\mathrm{1103}}^1$

素因数の和:1667

約数の個数: 32

約数和(自身を含む): 161559360

約数和(自身を除く): 80405032

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 541, 1082, 1103, 2164, 2206, 4328, 4412, 8824, 9197, 18394, 18751, 36788, 37502, 73576, 75004, 150008, 596723, 1193446, 2386892, 4773784, 10144291, 20288582, 40577164, 81154328]

約数ペア:

[(1, 81154328), (2, 40577164), (4, 20288582), (8, 10144291), (17, 4773784), (34, 2386892), (68, 1193446), (136, 596723), (541, 150008), (1082, 75004), (1103, 73576), (2164, 37502), (2206, 36788), (4328, 18751), (4412, 18394), (8824, 9197)]