13750000

素因数分解:

$2^4\times 5^7\times {\mathrm{11}}^1$

素因数の和:54

約数の個数: 80

約数和(自身を含む): 36328032

約数和(自身を除く): 22578032

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 125, 176, 200, 220, 250, 275, 400, 440, 500, 550, 625, 880, 1000, 1100, 1250, 1375, 2000, 2200, 2500, 2750, 3125, 4400, 5000, 5500, 6250, 6875, 10000, 11000, 12500, 13750, 15625, 22000, 25000, 27500, 31250, 34375, 50000, 55000, 62500, 68750, 78125, 110000, 125000, 137500, 156250, 171875, 250000, 275000, 312500, 343750, 550000, 625000, 687500, 859375, 1250000, 1375000, 1718750, 2750000, 3437500, 6875000, 13750000]

約数ペア:

[(1, 13750000), (2, 6875000), (4, 3437500), (5, 2750000), (8, 1718750), (10, 1375000), (11, 1250000), (16, 859375), (20, 687500), (22, 625000), (25, 550000), (40, 343750), (44, 312500), (50, 275000), (55, 250000), (80, 171875), (88, 156250), (100, 137500), (110, 125000), (125, 110000), (176, 78125), (200, 68750), (220, 62500), (250, 55000), (275, 50000), (400, 34375), (440, 31250), (500, 27500), (550, 25000), (625, 22000), (880, 15625), (1000, 13750), (1100, 12500), (1250, 11000), (1375, 10000), (2000, 6875), (2200, 6250), (2500, 5500), (2750, 5000), (3125, 4400)]