81740764

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67891}}^1$

素因数の和:67945

約数の個数: 24

約数和(自身を含む): 167285888

約数和(自身を除く): 85545124

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67891, 135782, 271564, 475237, 950474, 1900948, 2919313, 5838626, 11677252, 20435191, 40870382, 81740764]

約数ペア:

[(1, 81740764), (2, 40870382), (4, 20435191), (7, 11677252), (14, 5838626), (28, 2919313), (43, 1900948), (86, 950474), (172, 475237), (301, 271564), (602, 135782), (1204, 67891)]