213380

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 459648

約数和(自身を除く): 246268

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 227, 235, 454, 470, 908, 940, 1135, 2270, 4540, 10669, 21338, 42676, 53345, 106690, 213380]

約数ペア:

[(1, 213380), (2, 106690), (4, 53345), (5, 42676), (10, 21338), (20, 10669), (47, 4540), (94, 2270), (188, 1135), (227, 940), (235, 908), (454, 470)]