257338900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28279}}^1$

素因数の和:28313

約数の個数: 72

約数和(自身を含む): 687317120

約数和(自身を除く): 429978220

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2275, 4550, 9100, 28279, 56558, 113116, 141395, 197953, 282790, 367627, 395906, 565580, 706975, 735254, 791812, 989765, 1413950, 1470508, 1838135, 1979530, 2573389, 2827900, 3676270, 3959060, 4948825, 5146778, 7352540, 9190675, 9897650, 10293556, 12866945, 18381350, 19795300, 25733890, 36762700, 51467780, 64334725, 128669450, 257338900]

約数ペア:

[(1, 257338900), (2, 128669450), (4, 64334725), (5, 51467780), (7, 36762700), (10, 25733890), (13, 19795300), (14, 18381350), (20, 12866945), (25, 10293556), (26, 9897650), (28, 9190675), (35, 7352540), (50, 5146778), (52, 4948825), (65, 3959060), (70, 3676270), (91, 2827900), (100, 2573389), (130, 1979530), (140, 1838135), (175, 1470508), (182, 1413950), (260, 989765), (325, 791812), (350, 735254), (364, 706975), (455, 565580), (650, 395906), (700, 367627), (910, 282790), (1300, 197953), (1820, 141395), (2275, 113116), (4550, 56558), (9100, 28279)]