391389136

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{789091}}^1$

素因数の和:789130

約数の個数: 20

約数和(自身を含む): 782779264

約数和(自身を除く): 391390128

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 789091, 1578182, 3156364, 6312728, 12625456, 24461821, 48923642, 97847284, 195694568, 391389136]

約数ペア:

[(1, 391389136), (2, 195694568), (4, 97847284), (8, 48923642), (16, 24461821), (31, 12625456), (62, 6312728), (124, 3156364), (248, 1578182), (496, 789091)]