87139985

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{2099}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 115214400

約数和(自身を除く): 28074415

約数列:

[1, 5, 19, 23, 95, 115, 361, 437, 1805, 2099, 2185, 8303, 10495, 39881, 41515, 48277, 199405, 241385, 757739, 917263, 3788695, 4586315, 17427997, 87139985]

約数ペア:

[(1, 87139985), (5, 17427997), (19, 4586315), (23, 3788695), (95, 917263), (115, 757739), (361, 241385), (437, 199405), (1805, 48277), (2099, 41515), (2185, 39881), (8303, 10495)]