28971520

素因数分解:

$2^9\times 5^1\times {\mathrm{11317}}^1$

素因数の和:11340

約数の個数: 40

約数和(自身を含む): 69469884

約数和(自身を除く): 40498364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 11317, 22634, 45268, 56585, 90536, 113170, 181072, 226340, 362144, 452680, 724288, 905360, 1448576, 1810720, 2897152, 3621440, 5794304, 7242880, 14485760, 28971520]

約数ペア:

[(1, 28971520), (2, 14485760), (4, 7242880), (5, 5794304), (8, 3621440), (10, 2897152), (16, 1810720), (20, 1448576), (32, 905360), (40, 724288), (64, 452680), (80, 362144), (128, 226340), (160, 181072), (256, 113170), (320, 90536), (512, 56585), (640, 45268), (1280, 22634), (2560, 11317)]