257620320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{178903}}^1$

素因数の和:178924

約数の個数: 72

約数和(自身を含む): 879134256

約数和(自身を除く): 621513936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 178903, 357806, 536709, 715612, 894515, 1073418, 1431224, 1610127, 1789030, 2146836, 2683545, 2862448, 3220254, 3578060, 4293672, 5367090, 5724896, 6440508, 7156120, 8050635, 8587344, 10734180, 12881016, 14312240, 16101270, 17174688, 21468360, 25762032, 28624480, 32202540, 42936720, 51524064, 64405080, 85873440, 128810160, 257620320]

約数ペア:

[(1, 257620320), (2, 128810160), (3, 85873440), (4, 64405080), (5, 51524064), (6, 42936720), (8, 32202540), (9, 28624480), (10, 25762032), (12, 21468360), (15, 17174688), (16, 16101270), (18, 14312240), (20, 12881016), (24, 10734180), (30, 8587344), (32, 8050635), (36, 7156120), (40, 6440508), (45, 5724896), (48, 5367090), (60, 4293672), (72, 3578060), (80, 3220254), (90, 2862448), (96, 2683545), (120, 2146836), (144, 1789030), (160, 1610127), (180, 1431224), (240, 1073418), (288, 894515), (360, 715612), (480, 536709), (720, 357806), (1440, 178903)]