20795000

素因数分解:

$2^3\times 5^4\times {\mathrm{4159}}^1$

素因数の和:4185

約数の個数: 40

約数和(自身を含む): 48734400

約数和(自身を除く): 27939400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 4159, 5000, 8318, 16636, 20795, 33272, 41590, 83180, 103975, 166360, 207950, 415900, 519875, 831800, 1039750, 2079500, 2599375, 4159000, 5198750, 10397500, 20795000]

約数ペア:

[(1, 20795000), (2, 10397500), (4, 5198750), (5, 4159000), (8, 2599375), (10, 2079500), (20, 1039750), (25, 831800), (40, 519875), (50, 415900), (100, 207950), (125, 166360), (200, 103975), (250, 83180), (500, 41590), (625, 33272), (1000, 20795), (1250, 16636), (2500, 8318), (4159, 5000)]