20952790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72251}}^1$

素因数の和:72287

約数の個数: 16

約数和(自身を含む): 39016080

約数和(自身を除く): 18063290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72251, 144502, 361255, 722510, 2095279, 4190558, 10476395, 20952790]

約数ペア:

[(1, 20952790), (2, 10476395), (5, 4190558), (10, 2095279), (29, 722510), (58, 361255), (145, 144502), (290, 72251)]