78919840

素因数分解:

$2^5\times 5^1\times {\mathrm{493249}}^1$

素因数の和:493264

約数の個数: 24

約数和(自身を含む): 186448500

約数和(自身を除く): 107528660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 493249, 986498, 1972996, 2466245, 3945992, 4932490, 7891984, 9864980, 15783968, 19729960, 39459920, 78919840]

約数ペア:

[(1, 78919840), (2, 39459920), (4, 19729960), (5, 15783968), (8, 9864980), (10, 7891984), (16, 4932490), (20, 3945992), (32, 2466245), (40, 1972996), (80, 986498), (160, 493249)]