28991216

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{20359}}^1$

素因数の和:20456

約数の個数: 20

約数和(自身を含む): 56804400

約数和(自身を除く): 27813184

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 20359, 40718, 81436, 162872, 325744, 1811951, 3623902, 7247804, 14495608, 28991216]

約数ペア:

[(1, 28991216), (2, 14495608), (4, 7247804), (8, 3623902), (16, 1811951), (89, 325744), (178, 162872), (356, 81436), (712, 40718), (1424, 20359)]