257656704

素因数分解:

$2^7\times 3^1\times {\mathrm{673}}^1\times {\mathrm{997}}^1$

素因数の和:1687

約数の個数: 64

約数和(自身を含む): 686105040

約数和(自身を除く): 428448336

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 384, 673, 997, 1346, 1994, 2019, 2692, 2991, 3988, 4038, 5384, 5982, 7976, 8076, 10768, 11964, 15952, 16152, 21536, 23928, 31904, 32304, 43072, 47856, 63808, 64608, 86144, 95712, 127616, 129216, 191424, 258432, 382848, 670981, 1341962, 2012943, 2683924, 4025886, 5367848, 8051772, 10735696, 16103544, 21471392, 32207088, 42942784, 64414176, 85885568, 128828352, 257656704]

約数ペア:

[(1, 257656704), (2, 128828352), (3, 85885568), (4, 64414176), (6, 42942784), (8, 32207088), (12, 21471392), (16, 16103544), (24, 10735696), (32, 8051772), (48, 5367848), (64, 4025886), (96, 2683924), (128, 2012943), (192, 1341962), (384, 670981), (673, 382848), (997, 258432), (1346, 191424), (1994, 129216), (2019, 127616), (2692, 95712), (2991, 86144), (3988, 64608), (4038, 63808), (5384, 47856), (5982, 43072), (7976, 32304), (8076, 31904), (10768, 23928), (11964, 21536), (15952, 16152)]