505280240

素因数分解:

$2^4\times 5^1\times {\mathrm{6316003}}^1$

素因数の和:6316016

約数の個数: 20

約数和(自身を含む): 1174776744

約数和(自身を除く): 669496504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6316003, 12632006, 25264012, 31580015, 50528024, 63160030, 101056048, 126320060, 252640120, 505280240]

約数ペア:

[(1, 505280240), (2, 252640120), (4, 126320060), (5, 101056048), (8, 63160030), (10, 50528024), (16, 31580015), (20, 25264012), (40, 12632006), (80, 6316003)]