205310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{419}}^1$

素因数の和:440

約数の個数: 24

約数和(自身を含む): 430920

約数和(自身を除く): 225610

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 419, 490, 838, 2095, 2933, 4190, 5866, 14665, 20531, 29330, 41062, 102655, 205310]

約数ペア:

[(1, 205310), (2, 102655), (5, 41062), (7, 29330), (10, 20531), (14, 14665), (35, 5866), (49, 4190), (70, 2933), (98, 2095), (245, 838), (419, 490)]