28357000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{4051}}^1$

素因数の和:4079

約数の個数: 64

約数和(自身を含む): 75853440

約数和(自身を除く): 47496440

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, 3500, 4051, 7000, 8102, 16204, 20255, 28357, 32408, 40510, 56714, 81020, 101275, 113428, 141785, 162040, 202550, 226856, 283570, 405100, 506375, 567140, 708925, 810200, 1012750, 1134280, 1417850, 2025500, 2835700, 3544625, 4051000, 5671400, 7089250, 14178500, 28357000]

約数ペア:

[(1, 28357000), (2, 14178500), (4, 7089250), (5, 5671400), (7, 4051000), (8, 3544625), (10, 2835700), (14, 2025500), (20, 1417850), (25, 1134280), (28, 1012750), (35, 810200), (40, 708925), (50, 567140), (56, 506375), (70, 405100), (100, 283570), (125, 226856), (140, 202550), (175, 162040), (200, 141785), (250, 113428), (280, 101275), (350, 81020), (500, 56714), (700, 40510), (875, 32408), (1000, 28357), (1400, 20255), (1750, 16204), (3500, 8102), (4051, 7000)]