25564815

素因数分解:

$3^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 46938528

約数和(自身を除く): 21373713

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 81, 135, 159, 243, 265, 397, 405, 477, 795, 1191, 1215, 1431, 1985, 2385, 3573, 4293, 5955, 7155, 10719, 12879, 17865, 21041, 21465, 32157, 53595, 63123, 64395, 96471, 105205, 160785, 189369, 315615, 482355, 568107, 946845, 1704321, 2840535, 5112963, 8521605, 25564815]

約数ペア:

[(1, 25564815), (3, 8521605), (5, 5112963), (9, 2840535), (15, 1704321), (27, 946845), (45, 568107), (53, 482355), (81, 315615), (135, 189369), (159, 160785), (243, 105205), (265, 96471), (397, 64395), (405, 63123), (477, 53595), (795, 32157), (1191, 21465), (1215, 21041), (1431, 17865), (1985, 12879), (2385, 10719), (3573, 7155), (4293, 5955)]