20273780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27397}}^1$

素因数の和:27443

約数の個数: 24

約数和(自身を含む): 43727208

約数和(自身を除く): 23453428

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 27397, 54794, 109588, 136985, 273970, 547940, 1013689, 2027378, 4054756, 5068445, 10136890, 20273780]

約数ペア:

[(1, 20273780), (2, 10136890), (4, 5068445), (5, 4054756), (10, 2027378), (20, 1013689), (37, 547940), (74, 273970), (148, 136985), (185, 109588), (370, 54794), (740, 27397)]