64390823

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 80289792

約数和(自身を除く): 15898969

約数列:

[1, 7, 23, 43, 71, 131, 161, 301, 497, 917, 989, 1633, 3013, 3053, 5633, 6923, 9301, 11431, 21091, 21371, 39431, 65107, 70219, 129559, 213923, 399943, 491533, 906913, 1497461, 2799601, 9198689, 64390823]

約数ペア:

[(1, 64390823), (7, 9198689), (23, 2799601), (43, 1497461), (71, 906913), (131, 491533), (161, 399943), (301, 213923), (497, 129559), (917, 70219), (989, 65107), (1633, 39431), (3013, 21371), (3053, 21091), (5633, 11431), (6923, 9301)]