20420272

素因数分解:

$2^4\times {\mathrm{569}}^1\times {\mathrm{2243}}^1$

素因数の和:2820

約数の個数: 20

約数和(自身を含む): 39651480

約数和(自身を除く): 19231208

約数列:

[1, 2, 4, 8, 16, 569, 1138, 2243, 2276, 4486, 4552, 8972, 9104, 17944, 35888, 1276267, 2552534, 5105068, 10210136, 20420272]

約数ペア:

[(1, 20420272), (2, 10210136), (4, 5105068), (8, 2552534), (16, 1276267), (569, 35888), (1138, 17944), (2243, 9104), (2276, 8972), (4486, 4552)]