21007600

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1858

約数の個数: 60

約数和(自身を含む): 52239960

約数和(自身を除く): 31232360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1811, 2320, 2900, 3622, 5800, 7244, 9055, 11600, 14488, 18110, 28976, 36220, 45275, 52519, 72440, 90550, 105038, 144880, 181100, 210076, 262595, 362200, 420152, 525190, 724400, 840304, 1050380, 1312975, 2100760, 2625950, 4201520, 5251900, 10503800, 21007600]

約数ペア:

[(1, 21007600), (2, 10503800), (4, 5251900), (5, 4201520), (8, 2625950), (10, 2100760), (16, 1312975), (20, 1050380), (25, 840304), (29, 724400), (40, 525190), (50, 420152), (58, 362200), (80, 262595), (100, 210076), (116, 181100), (145, 144880), (200, 105038), (232, 90550), (290, 72440), (400, 52519), (464, 45275), (580, 36220), (725, 28976), (1160, 18110), (1450, 14488), (1811, 11600), (2320, 9055), (2900, 7244), (3622, 5800)]