20394350

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4583}}^1$

素因数の和:4684

約数の個数: 24

約数和(自身を含む): 38368080

約数和(自身を除く): 17973730

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4450, 4583, 9166, 22915, 45830, 114575, 229150, 407887, 815774, 2039435, 4078870, 10197175, 20394350]

約数ペア:

[(1, 20394350), (2, 10197175), (5, 4078870), (10, 2039435), (25, 815774), (50, 407887), (89, 229150), (178, 114575), (445, 45830), (890, 22915), (2225, 9166), (4450, 4583)]