199713025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{20431}}^1$

素因数の和:20481

約数の個数: 24

約数和(自身を含む): 273625344

約数和(自身を除く): 73912319

約数列:

[1, 5, 17, 23, 25, 85, 115, 391, 425, 575, 1955, 9775, 20431, 102155, 347327, 469913, 510775, 1736635, 2349565, 7988521, 8683175, 11747825, 39942605, 199713025]

約数ペア:

[(1, 199713025), (5, 39942605), (17, 11747825), (23, 8683175), (25, 7988521), (85, 2349565), (115, 1736635), (391, 510775), (425, 469913), (575, 347327), (1955, 102155), (9775, 20431)]