210908240

素因数分解:

$2^4\times 5^1\times {\mathrm{2636353}}^1$

素因数の和:2636366

約数の個数: 20

約数和(自身を含む): 490361844

約数和(自身を除く): 279453604

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2636353, 5272706, 10545412, 13181765, 21090824, 26363530, 42181648, 52727060, 105454120, 210908240]

約数ペア:

[(1, 210908240), (2, 105454120), (4, 52727060), (5, 42181648), (8, 26363530), (10, 21090824), (16, 13181765), (20, 10545412), (40, 5272706), (80, 2636353)]