257816336

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{7321}}^1$

素因数の和:7431

約数の個数: 40

約数和(自身を含む): 522966528

約数和(自身を除く): 265150192

約数列:

[1, 2, 4, 8, 16, 31, 62, 71, 124, 142, 248, 284, 496, 568, 1136, 2201, 4402, 7321, 8804, 14642, 17608, 29284, 35216, 58568, 117136, 226951, 453902, 519791, 907804, 1039582, 1815608, 2079164, 3631216, 4158328, 8316656, 16113521, 32227042, 64454084, 128908168, 257816336]

約数ペア:

[(1, 257816336), (2, 128908168), (4, 64454084), (8, 32227042), (16, 16113521), (31, 8316656), (62, 4158328), (71, 3631216), (124, 2079164), (142, 1815608), (248, 1039582), (284, 907804), (496, 519791), (568, 453902), (1136, 226951), (2201, 117136), (4402, 58568), (7321, 35216), (8804, 29284), (14642, 17608)]