20583040

素因数分解:

$2^7\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1109}}^1$

素因数の和:1157

約数の個数: 64

約数和(自身を含む): 50949000

約数和(自身を除く): 30365960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 290, 320, 464, 580, 640, 928, 1109, 1160, 1856, 2218, 2320, 3712, 4436, 4640, 5545, 8872, 9280, 11090, 17744, 18560, 22180, 32161, 35488, 44360, 64322, 70976, 88720, 128644, 141952, 160805, 177440, 257288, 321610, 354880, 514576, 643220, 709760, 1029152, 1286440, 2058304, 2572880, 4116608, 5145760, 10291520, 20583040]

約数ペア:

[(1, 20583040), (2, 10291520), (4, 5145760), (5, 4116608), (8, 2572880), (10, 2058304), (16, 1286440), (20, 1029152), (29, 709760), (32, 643220), (40, 514576), (58, 354880), (64, 321610), (80, 257288), (116, 177440), (128, 160805), (145, 141952), (160, 128644), (232, 88720), (290, 70976), (320, 64322), (464, 44360), (580, 35488), (640, 32161), (928, 22180), (1109, 18560), (1160, 17744), (1856, 11090), (2218, 9280), (2320, 8872), (3712, 5545), (4436, 4640)]