20004008

素因数分解:

$2^3\times {\mathrm{1103}}^1\times {\mathrm{2267}}^1$

素因数の和:3376

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 17554072

約数列:

[1, 2, 4, 8, 1103, 2206, 2267, 4412, 4534, 8824, 9068, 18136, 2500501, 5001002, 10002004, 20004008]

約数ペア:

[(1, 20004008), (2, 10002004), (4, 5001002), (8, 2500501), (1103, 18136), (2206, 9068), (2267, 8824), (4412, 4534)]