208908890

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{444487}}^1$

素因数の和:444541

約数の個数: 16

約数和(自身を含む): 384037632

約数和(自身を除く): 175128742

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 444487, 888974, 2222435, 4444870, 20890889, 41781778, 104454445, 208908890]

約数ペア:

[(1, 208908890), (2, 104454445), (5, 41781778), (10, 20890889), (47, 4444870), (94, 2222435), (235, 888974), (470, 444487)]