78838565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:549

約数の個数: 32

約数和(自身を含む): 106060416

約数和(自身を除く): 27221851

約数列:

[1, 5, 13, 43, 65, 67, 215, 335, 421, 559, 871, 2105, 2795, 2881, 4355, 5473, 14405, 18103, 27365, 28207, 37453, 90515, 141035, 187265, 235339, 366691, 1176695, 1212901, 1833455, 6064505, 15767713, 78838565]

約数ペア:

[(1, 78838565), (5, 15767713), (13, 6064505), (43, 1833455), (65, 1212901), (67, 1176695), (215, 366691), (335, 235339), (421, 187265), (559, 141035), (871, 90515), (2105, 37453), (2795, 28207), (2881, 27365), (4355, 18103), (5473, 14405)]