28378000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{2027}}^1$

素因数の和:2057

約数の個数: 80

約数和(自身を含む): 78459264

約数和(自身を除く): 50081264

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, 2027, 2800, 3500, 4054, 7000, 8108, 10135, 14000, 14189, 16216, 20270, 28378, 32432, 40540, 50675, 56756, 70945, 81080, 101350, 113512, 141890, 162160, 202700, 227024, 253375, 283780, 354725, 405400, 506750, 567560, 709450, 810800, 1013500, 1135120, 1418900, 1773625, 2027000, 2837800, 3547250, 4054000, 5675600, 7094500, 14189000, 28378000]

約数ペア:

[(1, 28378000), (2, 14189000), (4, 7094500), (5, 5675600), (7, 4054000), (8, 3547250), (10, 2837800), (14, 2027000), (16, 1773625), (20, 1418900), (25, 1135120), (28, 1013500), (35, 810800), (40, 709450), (50, 567560), (56, 506750), (70, 405400), (80, 354725), (100, 283780), (112, 253375), (125, 227024), (140, 202700), (175, 162160), (200, 141890), (250, 113512), (280, 101350), (350, 81080), (400, 70945), (500, 56756), (560, 50675), (700, 40540), (875, 32432), (1000, 28378), (1400, 20270), (1750, 16216), (2000, 14189), (2027, 14000), (2800, 10135), (3500, 8108), (4054, 7000)]