6441980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18947}}^1$

素因数の和:18973

約数の個数: 24

約数和(自身を含む): 14324688

約数和(自身を除く): 7882708

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 18947, 37894, 75788, 94735, 189470, 322099, 378940, 644198, 1288396, 1610495, 3220990, 6441980]

約数ペア:

[(1, 6441980), (2, 3220990), (4, 1610495), (5, 1288396), (10, 644198), (17, 378940), (20, 322099), (34, 189470), (68, 94735), (85, 75788), (170, 37894), (340, 18947)]