128220016

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{51043}}^1$

素因数の和:51208

約数の個数: 20

約数和(自身を含む): 250013512

約数和(自身を除く): 121793496

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 51043, 102086, 204172, 408344, 816688, 8013751, 16027502, 32055004, 64110008, 128220016]

約数ペア:

[(1, 128220016), (2, 64110008), (4, 32055004), (8, 16027502), (16, 8013751), (157, 816688), (314, 408344), (628, 204172), (1256, 102086), (2512, 51043)]