389728

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:670

約数の個数: 24

約数和(自身を含む): 808920

約数和(自身を除く): 419192

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 304, 608, 641, 1282, 2564, 5128, 10256, 12179, 20512, 24358, 48716, 97432, 194864, 389728]

約数ペア:

[(1, 389728), (2, 194864), (4, 97432), (8, 48716), (16, 24358), (19, 20512), (32, 12179), (38, 10256), (76, 5128), (152, 2564), (304, 1282), (608, 641)]