1285207564

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{641}}^1\times {\mathrm{11657}}^1$

素因数の和:12345

約数の個数: 24

約数和(自身を含む): 2305206288

約数和(自身を除く): 1019998724

約数列:

[1, 2, 4, 43, 86, 172, 641, 1282, 2564, 11657, 23314, 27563, 46628, 55126, 110252, 501251, 1002502, 2005004, 7472137, 14944274, 29888548, 321301891, 642603782, 1285207564]

約数ペア:

[(1, 1285207564), (2, 642603782), (4, 321301891), (43, 29888548), (86, 14944274), (172, 7472137), (641, 2005004), (1282, 1002502), (2564, 501251), (11657, 110252), (23314, 55126), (27563, 46628)]