216461780

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{82619}}^1$

素因数の和:82759

約数の個数: 24

約数和(自身を含む): 458045280

約数和(自身を除く): 241583500

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 82619, 165238, 330476, 413095, 826190, 1652380, 10823089, 21646178, 43292356, 54115445, 108230890, 216461780]

約数ペア:

[(1, 216461780), (2, 108230890), (4, 54115445), (5, 43292356), (10, 21646178), (20, 10823089), (131, 1652380), (262, 826190), (524, 413095), (655, 330476), (1310, 165238), (2620, 82619)]