20756080

素因数分解:

$2^4\times 5^1\times {\mathrm{259451}}^1$

素因数の和:259464

約数の個数: 20

約数和(自身を含む): 48258072

約数和(自身を除く): 27501992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 259451, 518902, 1037804, 1297255, 2075608, 2594510, 4151216, 5189020, 10378040, 20756080]

約数ペア:

[(1, 20756080), (2, 10378040), (4, 5189020), (5, 4151216), (8, 2594510), (10, 2075608), (16, 1297255), (20, 1037804), (40, 518902), (80, 259451)]