128020320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{88903}}^1$

素因数の和:88924

約数の個数: 72

約数和(自身を含む): 436874256

約数和(自身を除く): 308853936

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, 88903, 177806, 266709, 355612, 444515, 533418, 711224, 800127, 889030, 1066836, 1333545, 1422448, 1600254, 1778060, 2133672, 2667090, 2844896, 3200508, 3556120, 4000635, 4267344, 5334180, 6401016, 7112240, 8001270, 8534688, 10668360, 12802032, 14224480, 16002540, 21336720, 25604064, 32005080, 42673440, 64010160, 128020320]

約数ペア:

[(1, 128020320), (2, 64010160), (3, 42673440), (4, 32005080), (5, 25604064), (6, 21336720), (8, 16002540), (9, 14224480), (10, 12802032), (12, 10668360), (15, 8534688), (16, 8001270), (18, 7112240), (20, 6401016), (24, 5334180), (30, 4267344), (32, 4000635), (36, 3556120), (40, 3200508), (45, 2844896), (48, 2667090), (60, 2133672), (72, 1778060), (80, 1600254), (90, 1422448), (96, 1333545), (120, 1066836), (144, 889030), (160, 800127), (180, 711224), (240, 533418), (288, 444515), (360, 355612), (480, 266709), (720, 177806), (1440, 88903)]