20794940

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{7937}}^1$

素因数の和:8077

約数の個数: 24

約数和(自身を含む): 44008272

約数和(自身を除く): 23213332

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 7937, 15874, 31748, 39685, 79370, 158740, 1039747, 2079494, 4158988, 5198735, 10397470, 20794940]

約数ペア:

[(1, 20794940), (2, 10397470), (4, 5198735), (5, 4158988), (10, 2079494), (20, 1039747), (131, 158740), (262, 79370), (524, 39685), (655, 31748), (1310, 15874), (2620, 7937)]