12988720000

素因数分解:

$2^7\times 5^4\times {\mathrm{162359}}^1$

素因数の和:162393

約数の個数: 80

約数和(自身を含む): 32334805800

約数和(自身を除く): 19346085800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 320, 400, 500, 625, 640, 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 8000, 10000, 16000, 20000, 40000, 80000, 162359, 324718, 649436, 811795, 1298872, 1623590, 2597744, 3247180, 4058975, 5195488, 6494360, 8117950, 10390976, 12988720, 16235900, 20294875, 20781952, 25977440, 32471800, 40589750, 51954880, 64943600, 81179500, 101474375, 103909760, 129887200, 162359000, 202948750, 259774400, 324718000, 405897500, 519548800, 649436000, 811795000, 1298872000, 1623590000, 2597744000, 3247180000, 6494360000, 12988720000]

約数ペア:

[(1, 12988720000), (2, 6494360000), (4, 3247180000), (5, 2597744000), (8, 1623590000), (10, 1298872000), (16, 811795000), (20, 649436000), (25, 519548800), (32, 405897500), (40, 324718000), (50, 259774400), (64, 202948750), (80, 162359000), (100, 129887200), (125, 103909760), (128, 101474375), (160, 81179500), (200, 64943600), (250, 51954880), (320, 40589750), (400, 32471800), (500, 25977440), (625, 20781952), (640, 20294875), (800, 16235900), (1000, 12988720), (1250, 10390976), (1600, 8117950), (2000, 6494360), (2500, 5195488), (3200, 4058975), (4000, 3247180), (5000, 2597744), (8000, 1623590), (10000, 1298872), (16000, 811795), (20000, 649436), (40000, 324718), (80000, 162359)]