257233539

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 358525440

約数和(自身を除く): 101291901

約数列:

[1, 3, 53, 103, 113, 139, 159, 309, 339, 417, 5459, 5989, 7367, 11639, 14317, 15707, 16377, 17967, 22101, 34917, 42951, 47121, 616867, 758801, 832471, 1617821, 1850601, 2276403, 2497413, 4853463, 85744513, 257233539]

約数ペア:

[(1, 257233539), (3, 85744513), (53, 4853463), (103, 2497413), (113, 2276403), (139, 1850601), (159, 1617821), (309, 832471), (339, 758801), (417, 616867), (5459, 47121), (5989, 42951), (7367, 34917), (11639, 22101), (14317, 17967), (15707, 16377)]