20372540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{23689}}^1$

素因数の和:23741

約数の個数: 24

約数和(自身を含む): 43779120

約数和(自身を除く): 23406580

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 23689, 47378, 94756, 118445, 236890, 473780, 1018627, 2037254, 4074508, 5093135, 10186270, 20372540]

約数ペア:

[(1, 20372540), (2, 10186270), (4, 5093135), (5, 4074508), (10, 2037254), (20, 1018627), (43, 473780), (86, 236890), (172, 118445), (215, 94756), (430, 47378), (860, 23689)]