85810180

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{80953}}^1$

素因数の和:81015

約数の個数: 24

約数和(自身を含む): 183603672

約数和(自身を除く): 97793492

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 80953, 161906, 323812, 404765, 809530, 1619060, 4290509, 8581018, 17162036, 21452545, 42905090, 85810180]

約数ペア:

[(1, 85810180), (2, 42905090), (4, 21452545), (5, 17162036), (10, 8581018), (20, 4290509), (53, 1619060), (106, 809530), (212, 404765), (265, 323812), (530, 161906), (1060, 80953)]