20786500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{5939}}^1$

素因数の和:5965

約数の個数: 48

約数和(自身を含む): 51891840

約数和(自身を除く): 31105340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 700, 875, 1750, 3500, 5939, 11878, 23756, 29695, 41573, 59390, 83146, 118780, 148475, 166292, 207865, 296950, 415730, 593900, 742375, 831460, 1039325, 1484750, 2078650, 2969500, 4157300, 5196625, 10393250, 20786500]

約数ペア:

[(1, 20786500), (2, 10393250), (4, 5196625), (5, 4157300), (7, 2969500), (10, 2078650), (14, 1484750), (20, 1039325), (25, 831460), (28, 742375), (35, 593900), (50, 415730), (70, 296950), (100, 207865), (125, 166292), (140, 148475), (175, 118780), (250, 83146), (350, 59390), (500, 41573), (700, 29695), (875, 23756), (1750, 11878), (3500, 5939)]