81181328

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{47419}}^1$

素因数の和:47534

約数の個数: 20

約数和(自身を含む): 158762160

約数和(自身を除く): 77580832

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1712, 47419, 94838, 189676, 379352, 758704, 5073833, 10147666, 20295332, 40590664, 81181328]

約数ペア:

[(1, 81181328), (2, 40590664), (4, 20295332), (8, 10147666), (16, 5073833), (107, 758704), (214, 379352), (428, 189676), (856, 94838), (1712, 47419)]