257936960

素因数分解:

$2^6\times 5^1\times {\mathrm{373}}^1\times {\mathrm{2161}}^1$

素因数の和:2551

約数の個数: 56

約数和(自身を含む): 616144056

約数和(自身を除く): 358207096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 373, 746, 1492, 1865, 2161, 2984, 3730, 4322, 5968, 7460, 8644, 10805, 11936, 14920, 17288, 21610, 23872, 29840, 34576, 43220, 59680, 69152, 86440, 119360, 138304, 172880, 345760, 691520, 806053, 1612106, 3224212, 4030265, 6448424, 8060530, 12896848, 16121060, 25793696, 32242120, 51587392, 64484240, 128968480, 257936960]

約数ペア:

[(1, 257936960), (2, 128968480), (4, 64484240), (5, 51587392), (8, 32242120), (10, 25793696), (16, 16121060), (20, 12896848), (32, 8060530), (40, 6448424), (64, 4030265), (80, 3224212), (160, 1612106), (320, 806053), (373, 691520), (746, 345760), (1492, 172880), (1865, 138304), (2161, 119360), (2984, 86440), (3730, 69152), (4322, 59680), (5968, 43220), (7460, 34576), (8644, 29840), (10805, 23872), (11936, 21610), (14920, 17288)]