38878000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{2777}}^1$

素因数の和:2807

約数の個数: 80

約数和(自身を含む): 107475264

約数和(自身を除く): 68597264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1750, 2000, 2777, 2800, 3500, 5554, 7000, 11108, 13885, 14000, 19439, 22216, 27770, 38878, 44432, 55540, 69425, 77756, 97195, 111080, 138850, 155512, 194390, 222160, 277700, 311024, 347125, 388780, 485975, 555400, 694250, 777560, 971950, 1110800, 1388500, 1555120, 1943900, 2429875, 2777000, 3887800, 4859750, 5554000, 7775600, 9719500, 19439000, 38878000]

約数ペア:

[(1, 38878000), (2, 19439000), (4, 9719500), (5, 7775600), (7, 5554000), (8, 4859750), (10, 3887800), (14, 2777000), (16, 2429875), (20, 1943900), (25, 1555120), (28, 1388500), (35, 1110800), (40, 971950), (50, 777560), (56, 694250), (70, 555400), (80, 485975), (100, 388780), (112, 347125), (125, 311024), (140, 277700), (175, 222160), (200, 194390), (250, 155512), (280, 138850), (350, 111080), (400, 97195), (500, 77756), (560, 69425), (700, 55540), (875, 44432), (1000, 38878), (1400, 27770), (1750, 22216), (2000, 19439), (2777, 14000), (2800, 13885), (3500, 11108), (5554, 7000)]