257185278

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{27961}}^1$

素因数の和:28049

約数の個数: 48

約数和(自身を含む): 645586656

約数和(自身を除く): 388401378

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 73, 126, 146, 219, 438, 511, 657, 1022, 1314, 1533, 3066, 4599, 9198, 27961, 55922, 83883, 167766, 195727, 251649, 391454, 503298, 587181, 1174362, 1761543, 2041153, 3523086, 4082306, 6123459, 12246918, 14288071, 18370377, 28576142, 36740754, 42864213, 85728426, 128592639, 257185278]

約数ペア:

[(1, 257185278), (2, 128592639), (3, 85728426), (6, 42864213), (7, 36740754), (9, 28576142), (14, 18370377), (18, 14288071), (21, 12246918), (42, 6123459), (63, 4082306), (73, 3523086), (126, 2041153), (146, 1761543), (219, 1174362), (438, 587181), (511, 503298), (657, 391454), (1022, 251649), (1314, 195727), (1533, 167766), (3066, 83883), (4599, 55922), (9198, 27961)]