257786254

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{3889}}^1$

素因数の和:4056

約数の個数: 32

約数和(自身を含む): 443646720

約数和(自身を除く): 185860466

約数列:

[1, 2, 11, 22, 23, 46, 131, 253, 262, 506, 1441, 2882, 3013, 3889, 6026, 7778, 33143, 42779, 66286, 85558, 89447, 178894, 509459, 983917, 1018918, 1967834, 5604049, 11208098, 11717557, 23435114, 128893127, 257786254]

約数ペア:

[(1, 257786254), (2, 128893127), (11, 23435114), (22, 11717557), (23, 11208098), (46, 5604049), (131, 1967834), (253, 1018918), (262, 983917), (506, 509459), (1441, 178894), (2882, 89447), (3013, 85558), (3889, 66286), (6026, 42779), (7778, 33143)]