19957000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{2851}}^1$

素因数の和:2879

約数の個数: 64

約数和(自身を含む): 53389440

約数和(自身を除く): 33432440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1750, 2851, 3500, 5702, 7000, 11404, 14255, 19957, 22808, 28510, 39914, 57020, 71275, 79828, 99785, 114040, 142550, 159656, 199570, 285100, 356375, 399140, 498925, 570200, 712750, 798280, 997850, 1425500, 1995700, 2494625, 2851000, 3991400, 4989250, 9978500, 19957000]

約数ペア:

[(1, 19957000), (2, 9978500), (4, 4989250), (5, 3991400), (7, 2851000), (8, 2494625), (10, 1995700), (14, 1425500), (20, 997850), (25, 798280), (28, 712750), (35, 570200), (40, 498925), (50, 399140), (56, 356375), (70, 285100), (100, 199570), (125, 159656), (140, 142550), (175, 114040), (200, 99785), (250, 79828), (280, 71275), (350, 57020), (500, 39914), (700, 28510), (875, 22808), (1000, 19957), (1400, 14255), (1750, 11404), (2851, 7000), (3500, 5702)]