81970864

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{269641}}^1$

素因数の和:269668

約数の個数: 20

約数和(自身を含む): 167178040

約数和(自身を除く): 85207176

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 269641, 539282, 1078564, 2157128, 4314256, 5123179, 10246358, 20492716, 40985432, 81970864]

約数ペア:

[(1, 81970864), (2, 40985432), (4, 20492716), (8, 10246358), (16, 5123179), (19, 4314256), (38, 2157128), (76, 1078564), (152, 539282), (304, 269641)]