8380000

素因数分解:

$2^5\times 5^4\times {\mathrm{419}}^1$

素因数の和:449

約数の個数: 60

約数和(自身を含む): 20665260

約数和(自身を除く): 12285260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 419, 500, 625, 800, 838, 1000, 1250, 1676, 2000, 2095, 2500, 3352, 4000, 4190, 5000, 6704, 8380, 10000, 10475, 13408, 16760, 20000, 20950, 33520, 41900, 52375, 67040, 83800, 104750, 167600, 209500, 261875, 335200, 419000, 523750, 838000, 1047500, 1676000, 2095000, 4190000, 8380000]

約数ペア:

[(1, 8380000), (2, 4190000), (4, 2095000), (5, 1676000), (8, 1047500), (10, 838000), (16, 523750), (20, 419000), (25, 335200), (32, 261875), (40, 209500), (50, 167600), (80, 104750), (100, 83800), (125, 67040), (160, 52375), (200, 41900), (250, 33520), (400, 20950), (419, 20000), (500, 16760), (625, 13408), (800, 10475), (838, 10000), (1000, 8380), (1250, 6704), (1676, 5000), (2000, 4190), (2095, 4000), (2500, 3352)]