257788255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{131861}}^1$

素因数の和:131906

約数の個数: 16

約数和(自身を含む): 341786304

約数和(自身を除く): 83998049

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 131861, 659305, 2241637, 3032803, 11208185, 15164015, 51557651, 257788255]

約数ペア:

[(1, 257788255), (5, 51557651), (17, 15164015), (23, 11208185), (85, 3032803), (115, 2241637), (391, 659305), (1955, 131861)]