18862490

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4201}}^1$

素因数の和:4657

約数の個数: 16

約数和(自身を含む): 34036200

約数和(自身を除く): 15173710

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4201, 4490, 8402, 21005, 42010, 1886249, 3772498, 9431245, 18862490]

約数ペア:

[(1, 18862490), (2, 9431245), (5, 3772498), (10, 1886249), (449, 42010), (898, 21005), (2245, 8402), (4201, 4490)]