21960500

素因数分解:

$2^2\times 5^3\times {\mathrm{167}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 26471884

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 167, 250, 263, 334, 500, 526, 668, 835, 1052, 1315, 1670, 2630, 3340, 4175, 5260, 6575, 8350, 13150, 16700, 20875, 26300, 32875, 41750, 43921, 65750, 83500, 87842, 131500, 175684, 219605, 439210, 878420, 1098025, 2196050, 4392100, 5490125, 10980250, 21960500]

約数ペア:

[(1, 21960500), (2, 10980250), (4, 5490125), (5, 4392100), (10, 2196050), (20, 1098025), (25, 878420), (50, 439210), (100, 219605), (125, 175684), (167, 131500), (250, 87842), (263, 83500), (334, 65750), (500, 43921), (526, 41750), (668, 32875), (835, 26300), (1052, 20875), (1315, 16700), (1670, 13150), (2630, 8350), (3340, 6575), (4175, 5260)]