80974192

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389299}}^1$

素因数の和:389320

約数の個数: 20

約数和(自身を含む): 168956200

約数和(自身を除く): 87982008

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389299, 778598, 1557196, 3114392, 5060887, 6228784, 10121774, 20243548, 40487096, 80974192]

約数ペア:

[(1, 80974192), (2, 40487096), (4, 20243548), (8, 10121774), (13, 6228784), (16, 5060887), (26, 3114392), (52, 1557196), (104, 778598), (208, 389299)]