209986705

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1\times {\mathrm{1487}}^1$

素因数の和:2016

約数の個数: 16

約数和(自身を含む): 256840704

約数和(自身を除く): 46853999

約数列:

[1, 5, 61, 305, 463, 1487, 2315, 7435, 28243, 90707, 141215, 453535, 688481, 3442405, 41997341, 209986705]

約数ペア:

[(1, 209986705), (5, 41997341), (61, 3442405), (305, 688481), (463, 453535), (1487, 141215), (2315, 90707), (7435, 28243)]